Finding the Fourth Proportional to 10,687.16, 14,755.20 and 9,566.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.16 : 14,755.20 = 9,566.12 : x
2. Step 2: Convert to fraction form
   10,687.16/14,755.20 = 9,566.12/x
3. Step 3: Cross multiply
   10,687.16x = 14,755.20 × 9,566.12
4. Step 4: Simplify right side
   10,687.16x = 141,150,013.82
5. Step 5: Solve for x
   x = 141,150,013.82/10,687.16
6. Step 6: Final answer
   x = 13,207.44