Finding the Fourth Proportional to 113,981.86, 170,819.95 and 88,711.89

Step by Step Solution

1. Step 1: Write the proportion equation
   113,981.86 : 170,819.95 = 88,711.89 : x
2. Step 2: Convert to fraction form
   113,981.86/170,819.95 = 88,711.89/x
3. Step 3: Cross multiply
   113,981.86x = 170,819.95 × 88,711.89
4. Step 4: Simplify right side
   113,981.86x = 15,153,760,614.21
5. Step 5: Solve for x
   x = 15,153,760,614.21/113,981.86
6. Step 6: Final answer
   x = 132,948.88