Finding the Fourth Proportional to 113,462.71, 156,599.54 and 65,716.05

Step by Step Solution

1. Step 1: Write the proportion equation
   113,462.71 : 156,599.54 = 65,716.05 : x
2. Step 2: Convert to fraction form
   113,462.71/156,599.54 = 65,716.05/x
3. Step 3: Cross multiply
   113,462.71x = 156,599.54 × 65,716.05
4. Step 4: Simplify right side
   113,462.71x = 10,291,103,200.62
5. Step 5: Solve for x
   x = 10,291,103,200.62/113,462.71
6. Step 6: Final answer
   x = 90,700.31