Finding the Fourth Proportional to 80,052.74, 120,151.80 and 42,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   80,052.74 : 120,151.80 = 42,644.72 : x
2. Step 2: Convert to fraction form
   80,052.74/120,151.80 = 42,644.72/x
3. Step 3: Cross multiply
   80,052.74x = 120,151.80 × 42,644.72
4. Step 4: Simplify right side
   80,052.74x = 5,123,839,267.74
5. Step 5: Solve for x
   x = 5,123,839,267.74/80,052.74
6. Step 6: Final answer
   x = 64,005.80