Finding the Fourth Proportional to 80,092.24, 120,211.12 and 42,684.28

Step by Step Solution

1. Step 1: Write the proportion equation
   80,092.24 : 120,211.12 = 42,684.28 : x
2. Step 2: Convert to fraction form
   80,092.24/120,211.12 = 42,684.28/x
3. Step 3: Cross multiply
   80,092.24x = 120,211.12 × 42,684.28
4. Step 4: Simplify right side
   80,092.24x = 5,131,125,105.19
5. Step 5: Solve for x
   x = 5,131,125,105.19/80,092.24
6. Step 6: Final answer
   x = 64,065.20