Finding the Fourth Proportional to 99,907.89, 137,882.27 and 54,592.59

Step by Step Solution

1. Step 1: Write the proportion equation
   99,907.89 : 137,882.27 = 54,592.59 : x
2. Step 2: Convert to fraction form
   99,907.89/137,882.27 = 54,592.59/x
3. Step 3: Cross multiply
   99,907.89x = 137,882.27 × 54,592.59
4. Step 4: Simplify right side
   99,907.89x = 7,527,349,961.42
5. Step 5: Solve for x
   x = 7,527,349,961.42/99,907.89
6. Step 6: Final answer
   x = 75,342.90