Finding the Fourth Proportional to 99,762.97, 137,675.83 and 54,443.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,762.97 : 137,675.83 = 54,443.88 : x
2. Step 2: Convert to fraction form
   99,762.97/137,675.83 = 54,443.88/x
3. Step 3: Cross multiply
   99,762.97x = 137,675.83 × 54,443.88
4. Step 4: Simplify right side
   99,762.97x = 7,495,606,367.42
5. Step 5: Solve for x
   x = 7,495,606,367.42/99,762.97
6. Step 6: Final answer
   x = 75,134.15