Finding the Fourth Proportional to 23,728.28, 32,744.12 and 13,118.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,728.28 : 32,744.12 = 13,118.09 : x
2. Step 2: Convert to fraction form
   23,728.28/32,744.12 = 13,118.09/x
3. Step 3: Cross multiply
   23,728.28x = 32,744.12 × 13,118.09
4. Step 4: Simplify right side
   23,728.28x = 429,540,083.82
5. Step 5: Solve for x
   x = 429,540,083.82/23,728.28
6. Step 6: Final answer
   x = 18,102.46