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How do I find the tension of the string? (The image is from a hw problem)

I want to know how to approach it. (hence, I left the numbers out)

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<edit>

Here's the info they give in hopes of more response:

Consider a lever rod of length L = 7.34 m,

weight W = 69 N and uniform density. As

shown on the picture below, the lever rod is

pivoted on one end and is supported by a

cable attached at a point b = 2.15 m from the other end.

The lever rod is in equilibrium at angle beta =

55 degrees from the vertical wall. The cable makes

angle alpha = 70 degrees with the rod.

What is the tension of the supporting cable? Answer in units of N.

</edit>

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All the variables in the picture are given. Now in terms of the variables, how do I solve it??

I think this is a torque and moment of inertia problem. But what equations will be used?

I came up with the following by comparing it was a somewhat similar problem. However, the "b" variable is throwing me off as to how that is utilized.

Help much appreciated. Thanks.

Is the following even close to helping finding T?

TL sin(beta) - Fg(L/2)sin(alpha) = O

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# Finding Tension of String

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