Finding the Fourth Proportional to 99,414.21, 137,187.50 and 54,092.37

Step by Step Solution

1. Step 1: Write the proportion equation
   99,414.21 : 137,187.50 = 54,092.37 : x
2. Step 2: Convert to fraction form
   99,414.21/137,187.50 = 54,092.37/x
3. Step 3: Cross multiply
   99,414.21x = 137,187.50 × 54,092.37
4. Step 4: Simplify right side
   99,414.21x = 7,420,797,009.38
5. Step 5: Solve for x
   x = 7,420,797,009.38/99,414.21
6. Step 6: Final answer
   x = 74,645.23