Finding the Fourth Proportional to 39,654.72, 59,469.12 and 13,352.40

Step by Step Solution

1. Step 1: Write the proportion equation
   39,654.72 : 59,469.12 = 13,352.40 : x
2. Step 2: Convert to fraction form
   39,654.72/59,469.12 = 13,352.40/x
3. Step 3: Cross multiply
   39,654.72x = 59,469.12 × 13,352.40
4. Step 4: Simplify right side
   39,654.72x = 794,055,477.89
5. Step 5: Solve for x
   x = 794,055,477.89/39,654.72
6. Step 6: Final answer
   x = 20,024.24