Finding the Fourth Proportional to 10,757.52, 14,814.48 and 9,686.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,757.52 : 14,814.48 = 9,686.16 : x
2. Step 2: Convert to fraction form
   10,757.52/14,814.48 = 9,686.16/x
3. Step 3: Cross multiply
   10,757.52x = 14,814.48 × 9,686.16
4. Step 4: Simplify right side
   10,757.52x = 143,495,423.60
5. Step 5: Solve for x
   x = 143,495,423.60/10,757.52
6. Step 6: Final answer
   x = 13,339.08