Finding the Fourth Proportional to 12,760.59, 17,616.08 and 7,983.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,760.59 : 17,616.08 = 7,983.36 : x
2. Step 2: Convert to fraction form
   12,760.59/17,616.08 = 7,983.36/x
3. Step 3: Cross multiply
   12,760.59x = 17,616.08 × 7,983.36
4. Step 4: Simplify right side
   12,760.59x = 140,635,528.39
5. Step 5: Solve for x
   x = 140,635,528.39/12,760.59
6. Step 6: Final answer
   x = 11,021.09