Compute the distance x and tension of each cable

1. The problem statement, all variables and given/known data
The thin steel plate, weighing 82lb/ft^2, is being lifted slowly by the cables AC and BC. Compute the distance x and find the corresponding tension in each of the cables.
[See attachments for Figure]

2. Relevant equations
Summation of X = 0
Summation of Y = 0
Moment=Rd

3. The attempt at a solution
So i tried to get the weight of the steel plate. here’s the solution..
2(21) + 4(12) + 1/2(9)(4) = 108ft^2
now i multiply the given 82lb/ft^2 to cancel out the ft^2
i get 8856lb.. After that i don’t know where to start next. Can you guys help me out?
I really think the problem is easy but i got lost on where to start…

Attached Images
File Type: png Untitled.png (53.7 KB)

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