Finding the Fourth Proportional to 80,981.10, 111,805.95 and 50,807.82

Step by Step Solution

1. Step 1: Write the proportion equation
   80,981.10 : 111,805.95 = 50,807.82 : x
2. Step 2: Convert to fraction form
   80,981.10/111,805.95 = 50,807.82/x
3. Step 3: Cross multiply
   80,981.10x = 111,805.95 × 50,807.82
4. Step 4: Simplify right side
   80,981.10x = 5,680,616,582.53
5. Step 5: Solve for x
   x = 5,680,616,582.53/80,981.10
6. Step 6: Final answer
   x = 70,147.44