Finding the Fourth Proportional to 99,761.93, 137,674.38 and 54,442.82

Step by Step Solution

1. Step 1: Write the proportion equation
   99,761.93 : 137,674.38 = 54,442.82 : x
2. Step 2: Convert to fraction form
   99,761.93/137,674.38 = 54,442.82/x
3. Step 3: Cross multiply
   99,761.93x = 137,674.38 × 54,442.82
4. Step 4: Simplify right side
   99,761.93x = 7,495,382,170.40
5. Step 5: Solve for x
   x = 7,495,382,170.40/99,761.93
6. Step 6: Final answer
   x = 75,132.69