Finding the Fourth Proportional to 90,469.83, 124,766.60 and 56,481.42

Step by Step Solution

1. Step 1: Write the proportion equation
   90,469.83 : 124,766.60 = 56,481.42 : x
2. Step 2: Convert to fraction form
   90,469.83/124,766.60 = 56,481.42/x
3. Step 3: Cross multiply
   90,469.83x = 124,766.60 × 56,481.42
4. Step 4: Simplify right side
   90,469.83x = 7,046,994,454.16
5. Step 5: Solve for x
   x = 7,046,994,454.16/90,469.83
6. Step 6: Final answer
   x = 77,893.31