Finding the Fourth Proportional to 113,566.48, 156,715.98 and 65,835.40

Step by Step Solution

1. Step 1: Write the proportion equation
   113,566.48 : 156,715.98 = 65,835.40 : x
2. Step 2: Convert to fraction form
   113,566.48/156,715.98 = 65,835.40/x
3. Step 3: Cross multiply
   113,566.48x = 156,715.98 × 65,835.40
4. Step 4: Simplify right side
   113,566.48x = 10,317,459,229.69
5. Step 5: Solve for x
   x = 10,317,459,229.69/113,566.48
6. Step 6: Final answer
   x = 90,849.51