Finding the Fourth Proportional to 23,270.28, 32,105.88 and 13,198.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,270.28 : 32,105.88 = 13,198.20 : x
2. Step 2: Convert to fraction form
   23,270.28/32,105.88 = 13,198.20/x
3. Step 3: Cross multiply
   23,270.28x = 32,105.88 × 13,198.20
4. Step 4: Simplify right side
   23,270.28x = 423,739,825.42
5. Step 5: Solve for x
   x = 423,739,825.42/23,270.28
6. Step 6: Final answer
   x = 18,209.49