Finding the Fourth Proportional to 23,929.48, 33,022.69 and 13,318.89

Step by Step Solution

1. Step 1: Write the proportion equation
   23,929.48 : 33,022.69 = 13,318.89 : x
2. Step 2: Convert to fraction form
   23,929.48/33,022.69 = 13,318.89/x
3. Step 3: Cross multiply
   23,929.48x = 33,022.69 × 13,318.89
4. Step 4: Simplify right side
   23,929.48x = 439,825,343.91
5. Step 5: Solve for x
   x = 439,825,343.91/23,929.48
6. Step 6: Final answer
   x = 18,380.06