Finding the Fourth Proportional to 80,422.52, 120,615.42 and 30,508.16

Step by Step Solution

1. Step 1: Write the proportion equation
   80,422.52 : 120,615.42 = 30,508.16 : x
2. Step 2: Convert to fraction form
   80,422.52/120,615.42 = 30,508.16/x
3. Step 3: Cross multiply
   80,422.52x = 120,615.42 × 30,508.16
4. Step 4: Simplify right side
   80,422.52x = 3,679,754,531.83
5. Step 5: Solve for x
   x = 3,679,754,531.83/80,422.52
6. Step 6: Final answer
   x = 45,755.28