Finding the Fourth Proportional to 99,582.53, 137,422.15 and 54,260.89

Step by Step Solution

1. Step 1: Write the proportion equation
   99,582.53 : 137,422.15 = 54,260.89 : x
2. Step 2: Convert to fraction form
   99,582.53/137,422.15 = 54,260.89/x
3. Step 3: Cross multiply
   99,582.53x = 137,422.15 × 54,260.89
4. Step 4: Simplify right side
   99,582.53x = 7,456,647,685.51
5. Step 5: Solve for x
   x = 7,456,647,685.51/99,582.53
6. Step 6: Final answer
   x = 74,879.08