Finding the Fourth Proportional to 113,447.68, 156,543.60 and 65,700.16

Step by Step Solution

1. Step 1: Write the proportion equation
   113,447.68 : 156,543.60 = 65,700.16 : x
2. Step 2: Convert to fraction form
   113,447.68/156,543.60 = 65,700.16/x
3. Step 3: Cross multiply
   113,447.68x = 156,543.60 × 65,700.16
4. Step 4: Simplify right side
   113,447.68x = 10,284,939,566.98
5. Step 5: Solve for x
   x = 10,284,939,566.98/113,447.68
6. Step 6: Final answer
   x = 90,658.00