Finding the Fourth Proportional to 60,040.72, 90,028.68 and 42,544.72

Step by Step Solution

1. Step 1: Write the proportion equation
   60,040.72 : 90,028.68 = 42,544.72 : x
2. Step 2: Convert to fraction form
   60,040.72/90,028.68 = 42,544.72/x
3. Step 3: Cross multiply
   60,040.72x = 90,028.68 × 42,544.72
4. Step 4: Simplify right side
   60,040.72x = 3,830,244,982.57
5. Step 5: Solve for x
   x = 3,830,244,982.57/60,040.72
6. Step 6: Final answer
   x = 63,794.12