Finding the Fourth Proportional to 99,590.52, 137,433.17 and 54,268.83

Step by Step Solution

1. Step 1: Write the proportion equation
   99,590.52 : 137,433.17 = 54,268.83 : x
2. Step 2: Convert to fraction form
   99,590.52/137,433.17 = 54,268.83/x
3. Step 3: Cross multiply
   99,590.52x = 137,433.17 × 54,268.83
4. Step 4: Simplify right side
   99,590.52x = 7,458,337,067.75
5. Step 5: Solve for x
   x = 7,458,337,067.75/99,590.52
6. Step 6: Final answer
   x = 74,890.03