Finding the Fourth Proportional to 80,550.18, 111,142.35 and 48,712.86

Step by Step Solution

1. Step 1: Write the proportion equation
   80,550.18 : 111,142.35 = 48,712.86 : x
2. Step 2: Convert to fraction form
   80,550.18/111,142.35 = 48,712.86/x
3. Step 3: Cross multiply
   80,550.18x = 111,142.35 × 48,712.86
4. Step 4: Simplify right side
   80,550.18x = 5,414,061,735.62
5. Step 5: Solve for x
   x = 5,414,061,735.62/80,550.18
6. Step 6: Final answer
   x = 67,213.53