Finding the Fourth Proportional to 99,441.52, 137,229.33 and 54,119.68

Step by Step Solution

1. Step 1: Write the proportion equation
   99,441.52 : 137,229.33 = 54,119.68 : x
2. Step 2: Convert to fraction form
   99,441.52/137,229.33 = 54,119.68/x
3. Step 3: Cross multiply
   99,441.52x = 137,229.33 × 54,119.68
4. Step 4: Simplify right side
   99,441.52x = 7,426,807,426.21
5. Step 5: Solve for x
   x = 7,426,807,426.21/99,441.52
6. Step 6: Final answer
   x = 74,685.18