Finding the Fourth Proportional to 80,594.28, 111,233.30 and 67,144.20

Step by Step Solution

1. Step 1: Write the proportion equation
   80,594.28 : 111,233.30 = 67,144.20 : x
2. Step 2: Convert to fraction form
   80,594.28/111,233.30 = 67,144.20/x
3. Step 3: Cross multiply
   80,594.28x = 111,233.30 × 67,144.20
4. Step 4: Simplify right side
   80,594.28x = 7,468,670,941.86
5. Step 5: Solve for x
   x = 7,468,670,941.86/80,594.28
6. Step 6: Final answer
   x = 92,669.99