Finding the Fourth Proportional to 89,693.31, 123,776.17 and 49,406.13

Step by Step Solution

1. Step 1: Write the proportion equation
   89,693.31 : 123,776.17 = 49,406.13 : x
2. Step 2: Convert to fraction form
   89,693.31/123,776.17 = 49,406.13/x
3. Step 3: Cross multiply
   89,693.31x = 123,776.17 × 49,406.13
4. Step 4: Simplify right side
   89,693.31x = 6,115,301,545.92
5. Step 5: Solve for x
   x = 6,115,301,545.92/89,693.31
6. Step 6: Final answer
   x = 68,180.13