Finding the Fourth Proportional to 23,650.71, 32,638.20 and 13,040.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,650.71 : 32,638.20 = 13,040.72 : x
2. Step 2: Convert to fraction form
   23,650.71/32,638.20 = 13,040.72/x
3. Step 3: Cross multiply
   23,650.71x = 32,638.20 × 13,040.72
4. Step 4: Simplify right side
   23,650.71x = 425,625,627.50
5. Step 5: Solve for x
   x = 425,625,627.50/23,650.71
6. Step 6: Final answer
   x = 17,996.32