Finding the Fourth Proportional to 23,851.36, 32,913.68 and 13,240.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,851.36 : 32,913.68 = 13,240.72 : x
2. Step 2: Convert to fraction form
   23,851.36/32,913.68 = 13,240.72/x
3. Step 3: Cross multiply
   23,851.36x = 32,913.68 × 13,240.72
4. Step 4: Simplify right side
   23,851.36x = 435,800,821.05
5. Step 5: Solve for x
   x = 435,800,821.05/23,851.36
6. Step 6: Final answer
   x = 18,271.53