Finding the Fourth Proportional to 89,545.01, 123,574.03 and 49,258.78

Step by Step Solution

1. Step 1: Write the proportion equation
   89,545.01 : 123,574.03 = 49,258.78 : x
2. Step 2: Convert to fraction form
   89,545.01/123,574.03 = 49,258.78/x
3. Step 3: Cross multiply
   89,545.01x = 123,574.03 × 49,258.78
4. Step 4: Simplify right side
   89,545.01x = 6,087,105,525.40
5. Step 5: Solve for x
   x = 6,087,105,525.40/89,545.01
6. Step 6: Final answer
   x = 67,978.17