Finding the Fourth Proportional to 89,414.46, 123,392.61 and 49,129.02

Step by Step Solution

1. Step 1: Write the proportion equation
   89,414.46 : 123,392.61 = 49,129.02 : x
2. Step 2: Convert to fraction form
   89,414.46/123,392.61 = 49,129.02/x
3. Step 3: Cross multiply
   89,414.46x = 123,392.61 × 49,129.02
4. Step 4: Simplify right side
   89,414.46x = 6,062,158,004.54
5. Step 5: Solve for x
   x = 6,062,158,004.54/89,414.46
6. Step 6: Final answer
   x = 67,798.41