Finding the Fourth Proportional to 99,917.82, 137,882.50 and 54,597.36

Step by Step Solution

1. Step 1: Write the proportion equation
   99,917.82 : 137,882.50 = 54,597.36 : x
2. Step 2: Convert to fraction form
   99,917.82/137,882.50 = 54,597.36/x
3. Step 3: Cross multiply
   99,917.82x = 137,882.50 × 54,597.36
4. Step 4: Simplify right side
   99,917.82x = 7,528,020,490.20
5. Step 5: Solve for x
   x = 7,528,020,490.20/99,917.82
6. Step 6: Final answer
   x = 75,342.12