Finding the Fourth Proportional to 99,337.43, 137,083.72 and 54,015.02

Step by Step Solution

1. Step 1: Write the proportion equation
   99,337.43 : 137,083.72 = 54,015.02 : x
2. Step 2: Convert to fraction form
   99,337.43/137,083.72 = 54,015.02/x
3. Step 3: Cross multiply
   99,337.43x = 137,083.72 × 54,015.02
4. Step 4: Simplify right side
   99,337.43x = 7,404,579,877.47
5. Step 5: Solve for x
   x = 7,404,579,877.47/99,337.43
6. Step 6: Final answer
   x = 74,539.68