Finding the Fourth Proportional to 80,792.76, 111,488.22 and 50,591.64

Step by Step Solution

1. Step 1: Write the proportion equation
   80,792.76 : 111,488.22 = 50,591.64 : x
2. Step 2: Convert to fraction form
   80,792.76/111,488.22 = 50,591.64/x
3. Step 3: Cross multiply
   80,792.76x = 111,488.22 × 50,591.64
4. Step 4: Simplify right side
   80,792.76x = 5,640,371,890.48
5. Step 5: Solve for x
   x = 5,640,371,890.48/80,792.76
6. Step 6: Final answer
   x = 69,812.84