Finding the Fourth Proportional to 89,787.83, 123,907.17 and 51,549.85

Step by Step Solution

1. Step 1: Write the proportion equation
   89,787.83 : 123,907.17 = 51,549.85 : x
2. Step 2: Convert to fraction form
   89,787.83/123,907.17 = 51,549.85/x
3. Step 3: Cross multiply
   89,787.83x = 123,907.17 × 51,549.85
4. Step 4: Simplify right side
   89,787.83x = 6,387,395,588.78
5. Step 5: Solve for x
   x = 6,387,395,588.78/89,787.83
6. Step 6: Final answer
   x = 71,138.77