Finding the Fourth Proportional to 89,555.61, 123,545.41 and 57,734.76

Step by Step Solution

1. Step 1: Write the proportion equation
   89,555.61 : 123,545.41 = 57,734.76 : x
2. Step 2: Convert to fraction form
   89,555.61/123,545.41 = 57,734.76/x
3. Step 3: Cross multiply
   89,555.61x = 123,545.41 × 57,734.76
4. Step 4: Simplify right side
   89,555.61x = 7,132,864,595.45
5. Step 5: Solve for x
   x = 7,132,864,595.45/89,555.61
6. Step 6: Final answer
   x = 79,647.32