Finding the Fourth Proportional to 10,887.52, 15,025.08 and 7,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887.52 : 15,025.08 = 7,706.50 : x
2. Step 2: Convert to fraction form
   10,887.52/15,025.08 = 7,706.50/x
3. Step 3: Cross multiply
   10,887.52x = 15,025.08 × 7,706.50
4. Step 4: Simplify right side
   10,887.52x = 115,790,779.02
5. Step 5: Solve for x
   x = 115,790,779.02/10,887.52
6. Step 6: Final answer
   x = 10,635.18