Finding the Fourth Proportional to 42,912.57, 59,220.15 and 25,008.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,912.57 : 59,220.15 = 25,008.63 : x
2. Step 2: Convert to fraction form
   42,912.57/59,220.15 = 25,008.63/x
3. Step 3: Cross multiply
   42,912.57x = 59,220.15 × 25,008.63
4. Step 4: Simplify right side
   42,912.57x = 1,481,014,819.89
5. Step 5: Solve for x
   x = 1,481,014,819.89/42,912.57
6. Step 6: Final answer
   x = 34,512.38