Finding the Fourth Proportional to 99,582.53, 137,422.16 and 54,260.88

Step by Step Solution

1. Step 1: Write the proportion equation
   99,582.53 : 137,422.16 = 54,260.88 : x
2. Step 2: Convert to fraction form
   99,582.53/137,422.16 = 54,260.88/x
3. Step 3: Cross multiply
   99,582.53x = 137,422.16 × 54,260.88
4. Step 4: Simplify right side
   99,582.53x = 7,456,647,061.80
5. Step 5: Solve for x
   x = 7,456,647,061.80/99,582.53
6. Step 6: Final answer
   x = 74,879.07