Finding the Fourth Proportional to 23,816.43, 32,870.61 and 13,209.48

Step by Step Solution

1. Step 1: Write the proportion equation
   23,816.43 : 32,870.61 = 13,209.48 : x
2. Step 2: Convert to fraction form
   23,816.43/32,870.61 = 13,209.48/x
3. Step 3: Cross multiply
   23,816.43x = 32,870.61 × 13,209.48
4. Step 4: Simplify right side
   23,816.43x = 434,203,665.38
5. Step 5: Solve for x
   x = 434,203,665.38/23,816.43
6. Step 6: Final answer
   x = 18,231.27