Finding the Fourth Proportional to 99,349.62, 137,103.39 and 54,028.03

Step by Step Solution

1. Step 1: Write the proportion equation
   99,349.62 : 137,103.39 = 54,028.03 : x
2. Step 2: Convert to fraction form
   99,349.62/137,103.39 = 54,028.03/x
3. Step 3: Cross multiply
   99,349.62x = 137,103.39 × 54,028.03
4. Step 4: Simplify right side
   99,349.62x = 7,407,426,068.02
5. Step 5: Solve for x
   x = 7,407,426,068.02/99,349.62
6. Step 6: Final answer
   x = 74,559.18