Finding the Fourth Proportional to 44,712.72, 67,017.24 and 42,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   44,712.72 : 67,017.24 = 42,120.72 : x
2. Step 2: Convert to fraction form
   44,712.72/67,017.24 = 42,120.72/x
3. Step 3: Cross multiply
   44,712.72x = 67,017.24 × 42,120.72
4. Step 4: Simplify right side
   44,712.72x = 2,822,814,401.21
5. Step 5: Solve for x
   x = 2,822,814,401.21/44,712.72
6. Step 6: Final answer
   x = 63,132.25