Finding the Fourth Proportional to 23,900.12, 32,982.04 and 13,289.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,900.12 : 32,982.04 = 13,289.12 : x
2. Step 2: Convert to fraction form
   23,900.12/32,982.04 = 13,289.12/x
3. Step 3: Cross multiply
   23,900.12x = 32,982.04 × 13,289.12
4. Step 4: Simplify right side
   23,900.12x = 438,302,287.40
5. Step 5: Solve for x
   x = 438,302,287.40/23,900.12
6. Step 6: Final answer
   x = 18,338.92