Finding the Fourth Proportional to 89,934.71, 134,929.06 and 42,585.89

Step by Step Solution

1. Step 1: Write the proportion equation
   89,934.71 : 134,929.06 = 42,585.89 : x
2. Step 2: Convert to fraction form
   89,934.71/134,929.06 = 42,585.89/x
3. Step 3: Cross multiply
   89,934.71x = 134,929.06 × 42,585.89
4. Step 4: Simplify right side
   89,934.71x = 5,746,073,325.85
5. Step 5: Solve for x
   x = 5,746,073,325.85/89,934.71
6. Step 6: Final answer
   x = 63,891.61