Finding the Fourth Proportional to 89,825.74, 134,739.29 and 39,892.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,825.74 : 134,739.29 = 39,892.43 : x
2. Step 2: Convert to fraction form
   89,825.74/134,739.29 = 39,892.43/x
3. Step 3: Cross multiply
   89,825.74x = 134,739.29 × 39,892.43
4. Step 4: Simplify right side
   89,825.74x = 5,375,077,694.57
5. Step 5: Solve for x
   x = 5,375,077,694.57/89,825.74
6. Step 6: Final answer
   x = 59,838.95