Finding the Fourth Proportional to 10,452.86, 15,665.37 and 9,059.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,452.86 : 15,665.37 = 9,059.70 : x
2. Step 2: Convert to fraction form
   10,452.86/15,665.37 = 9,059.70/x
3. Step 3: Cross multiply
   10,452.86x = 15,665.37 × 9,059.70
4. Step 4: Simplify right side
   10,452.86x = 141,923,552.59
5. Step 5: Solve for x
   x = 141,923,552.59/10,452.86
6. Step 6: Final answer
   x = 13,577.49