Finding the Fourth Proportional to 80,496.05, 111,061.85 and 50,311.98

Step by Step Solution

1. Step 1: Write the proportion equation
   80,496.05 : 111,061.85 = 50,311.98 : x
2. Step 2: Convert to fraction form
   80,496.05/111,061.85 = 50,311.98/x
3. Step 3: Cross multiply
   80,496.05x = 111,061.85 × 50,311.98
4. Step 4: Simplify right side
   80,496.05x = 5,587,741,324.40
5. Step 5: Solve for x
   x = 5,587,741,324.40/80,496.05
6. Step 6: Final answer
   x = 69,416.35