Finding the Fourth Proportional to 89,863.76, 134,796.18 and 39,932.12

Step by Step Solution

1. Step 1: Write the proportion equation
   89,863.76 : 134,796.18 = 39,932.12 : x
2. Step 2: Convert to fraction form
   89,863.76/134,796.18 = 39,932.12/x
3. Step 3: Cross multiply
   89,863.76x = 134,796.18 × 39,932.12
4. Step 4: Simplify right side
   89,863.76x = 5,382,697,235.30
5. Step 5: Solve for x
   x = 5,382,697,235.30/89,863.76
6. Step 6: Final answer
   x = 59,898.42