Finding the Fourth Proportional to 99,498.27, 137,306.32 and 54,175.73

Step by Step Solution

1. Step 1: Write the proportion equation
   99,498.27 : 137,306.32 = 54,175.73 : x
2. Step 2: Convert to fraction form
   99,498.27/137,306.32 = 54,175.73/x
3. Step 3: Cross multiply
   99,498.27x = 137,306.32 × 54,175.73
4. Step 4: Simplify right side
   99,498.27x = 7,438,670,119.61
5. Step 5: Solve for x
   x = 7,438,670,119.61/99,498.27
6. Step 6: Final answer
   x = 74,761.80