Finding the Fourth Proportional to 99,494.10, 137,314.98 and 57,044.52

Step by Step Solution

1. Step 1: Write the proportion equation
   99,494.10 : 137,314.98 = 57,044.52 : x
2. Step 2: Convert to fraction form
   99,494.10/137,314.98 = 57,044.52/x
3. Step 3: Cross multiply
   99,494.10x = 137,314.98 × 57,044.52
4. Step 4: Simplify right side
   99,494.10x = 7,833,067,122.91
5. Step 5: Solve for x
   x = 7,833,067,122.91/99,494.10
6. Step 6: Final answer
   x = 78,728.96