Finding the Fourth Proportional to 59,622.80, 89,436.92 and 42,170.56

Step by Step Solution

1. Step 1: Write the proportion equation
   59,622.80 : 89,436.92 = 42,170.56 : x
2. Step 2: Convert to fraction form
   59,622.80/89,436.92 = 42,170.56/x
3. Step 3: Cross multiply
   59,622.80x = 89,436.92 × 42,170.56
4. Step 4: Simplify right side
   59,622.80x = 3,771,605,001.08
5. Step 5: Solve for x
   x = 3,771,605,001.08/59,622.80
6. Step 6: Final answer
   x = 63,257.76