Finding the Fourth Proportional to 12,757.31, 17,605.69 and 7,092.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,757.31 : 17,605.69 = 7,092.15 : x
2. Step 2: Convert to fraction form
   12,757.31/17,605.69 = 7,092.15/x
3. Step 3: Cross multiply
   12,757.31x = 17,605.69 × 7,092.15
4. Step 4: Simplify right side
   12,757.31x = 124,862,288.08
5. Step 5: Solve for x
   x = 124,862,288.08/12,757.31
6. Step 6: Final answer
   x = 9,787.51