Finding the Fourth Proportional to 80,812.91, 111,592.33 and 50,650.09

Step by Step Solution

1. Step 1: Write the proportion equation
   80,812.91 : 111,592.33 = 50,650.09 : x
2. Step 2: Convert to fraction form
   80,812.91/111,592.33 = 50,650.09/x
3. Step 3: Cross multiply
   80,812.91x = 111,592.33 × 50,650.09
4. Step 4: Simplify right side
   80,812.91x = 5,652,161,152.20
5. Step 5: Solve for x
   x = 5,652,161,152.20/80,812.91
6. Step 6: Final answer
   x = 69,941.31