Finding the Fourth Proportional to 89,944.88, 134,874.16 and 42,520.48

Step by Step Solution

1. Step 1: Write the proportion equation
   89,944.88 : 134,874.16 = 42,520.48 : x
2. Step 2: Convert to fraction form
   89,944.88/134,874.16 = 42,520.48/x
3. Step 3: Cross multiply
   89,944.88x = 134,874.16 × 42,520.48
4. Step 4: Simplify right side
   89,944.88x = 5,734,914,022.80
5. Step 5: Solve for x
   x = 5,734,914,022.80/89,944.88
6. Step 6: Final answer
   x = 63,760.32