Finding the Fourth Proportional to 89,855.55, 123,996.24 and 54,038.61

Step by Step Solution

1. Step 1: Write the proportion equation
   89,855.55 : 123,996.24 = 54,038.61 : x
2. Step 2: Convert to fraction form
   89,855.55/123,996.24 = 54,038.61/x
3. Step 3: Cross multiply
   89,855.55x = 123,996.24 × 54,038.61
4. Step 4: Simplify right side
   89,855.55x = 6,700,584,454.83
5. Step 5: Solve for x
   x = 6,700,584,454.83/89,855.55
6. Step 6: Final answer
   x = 74,570.62