Finding the Fourth Proportional to 113,457.88, 156,614.72 and 89,195.55

Step by Step Solution

1. Step 1: Write the proportion equation
   113,457.88 : 156,614.72 = 89,195.55 : x
2. Step 2: Convert to fraction form
   113,457.88/156,614.72 = 89,195.55/x
3. Step 3: Cross multiply
   113,457.88x = 156,614.72 × 89,195.55
4. Step 4: Simplify right side
   113,457.88x = 13,969,336,088.50
5. Step 5: Solve for x
   x = 13,969,336,088.50/113,457.88
6. Step 6: Final answer
   x = 123,123.54