Finding the Fourth Proportional to 113,456.88, 156,613.34 and 89,194.55

Step by Step Solution

1. Step 1: Write the proportion equation
   113,456.88 : 156,613.34 = 89,194.55 : x
2. Step 2: Convert to fraction form
   113,456.88/156,613.34 = 89,194.55/x
3. Step 3: Cross multiply
   113,456.88x = 156,613.34 × 89,194.55
4. Step 4: Simplify right side
   113,456.88x = 13,969,055,156.26
5. Step 5: Solve for x
   x = 13,969,055,156.26/113,456.88
6. Step 6: Final answer
   x = 123,122.15