Finding the Fourth Proportional to 80,781.75, 111,406.24 and 50,569.82

Step by Step Solution

1. Step 1: Write the proportion equation
   80,781.75 : 111,406.24 = 50,569.82 : x
2. Step 2: Convert to fraction form
   80,781.75/111,406.24 = 50,569.82/x
3. Step 3: Cross multiply
   80,781.75x = 111,406.24 × 50,569.82
4. Step 4: Simplify right side
   80,781.75x = 5,633,793,143.18
5. Step 5: Solve for x
   x = 5,633,793,143.18/80,781.75
6. Step 6: Final answer
   x = 69,740.92