Finding the Fourth Proportional to 89,410.38, 123,385.92 and 49,126.64

Step by Step Solution

1. Step 1: Write the proportion equation
   89,410.38 : 123,385.92 = 49,126.64 : x
2. Step 2: Convert to fraction form
   89,410.38/123,385.92 = 49,126.64/x
3. Step 3: Cross multiply
   89,410.38x = 123,385.92 × 49,126.64
4. Step 4: Simplify right side
   89,410.38x = 6,061,535,672.91
5. Step 5: Solve for x
   x = 6,061,535,672.91/89,410.38
6. Step 6: Final answer
   x = 67,794.54