Finding the Fourth Proportional to 42,915.24, 59,229.90 and 25,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   42,915.24 : 59,229.90 = 25,020.72 : x
2. Step 2: Convert to fraction form
   42,915.24/59,229.90 = 25,020.72/x
3. Step 3: Cross multiply
   42,915.24x = 59,229.90 × 25,020.72
4. Step 4: Simplify right side
   42,915.24x = 1,481,974,743.53
5. Step 5: Solve for x
   x = 1,481,974,743.53/42,915.24
6. Step 6: Final answer
   x = 34,532.60