Finding the Fourth Proportional to 113,088.52, 169,310.22 and 89,749

Step by Step Solution

1. Step 1: Write the proportion equation
   113,088.52 : 169,310.22 = 89,749 : x
2. Step 2: Convert to fraction form
   113,088.52/169,310.22 = 89,749/x
3. Step 3: Cross multiply
   113,088.52x = 169,310.22 × 89,749
4. Step 4: Simplify right side
   113,088.52x = 15,195,422,934.78
5. Step 5: Solve for x
   x = 15,195,422,934.78/113,088.52
6. Step 6: Final answer
   x = 134,367.51