Finding the Fourth Proportional to 39,540.78, 59,215.18 and 21,744.27

Step by Step Solution

1. Step 1: Write the proportion equation
   39,540.78 : 59,215.18 = 21,744.27 : x
2. Step 2: Convert to fraction form
   39,540.78/59,215.18 = 21,744.27/x
3. Step 3: Cross multiply
   39,540.78x = 59,215.18 × 21,744.27
4. Step 4: Simplify right side
   39,540.78x = 1,287,590,862.02
5. Step 5: Solve for x
   x = 1,287,590,862.02/39,540.78
6. Step 6: Final answer
   x = 32,563.62