Finding the Fourth Proportional to 89,787.66, 123,921.59 and 54,013.83

Step by Step Solution

1. Step 1: Write the proportion equation
   89,787.66 : 123,921.59 = 54,013.83 : x
2. Step 2: Convert to fraction form
   89,787.66/123,921.59 = 54,013.83/x
3. Step 3: Cross multiply
   89,787.66x = 123,921.59 × 54,013.83
4. Step 4: Simplify right side
   89,787.66x = 6,693,479,695.59
5. Step 5: Solve for x
   x = 6,693,479,695.59/89,787.66
6. Step 6: Final answer
   x = 74,547.88