Finding the Fourth Proportional to 99,604.69, 137,454.47 and 54,892.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,604.69 : 137,454.47 = 54,892.69 : x
2. Step 2: Convert to fraction form
   99,604.69/137,454.47 = 54,892.69/x
3. Step 3: Cross multiply
   99,604.69x = 137,454.47 × 54,892.69
4. Step 4: Simplify right side
   99,604.69x = 7,545,245,610.82
5. Step 5: Solve for x
   x = 7,545,245,610.82/99,604.69
6. Step 6: Final answer
   x = 75,751.91