Finding the Fourth Proportional to 80,401.97, 120,612.32 and 30,519.38

Step by Step Solution

1. Step 1: Write the proportion equation
   80,401.97 : 120,612.32 = 30,519.38 : x
2. Step 2: Convert to fraction form
   80,401.97/120,612.32 = 30,519.38/x
3. Step 3: Cross multiply
   80,401.97x = 120,612.32 × 30,519.38
4. Step 4: Simplify right side
   80,401.97x = 3,681,013,490.14
5. Step 5: Solve for x
   x = 3,681,013,490.14/80,401.97
6. Step 6: Final answer
   x = 45,782.63