Finding the Fourth Proportional to 17,665.38, 24,399.81 and 13,208.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,665.38 : 24,399.81 = 13,208.94 : x
2. Step 2: Convert to fraction form
   17,665.38/24,399.81 = 13,208.94/x
3. Step 3: Cross multiply
   17,665.38x = 24,399.81 × 13,208.94
4. Step 4: Simplify right side
   17,665.38x = 322,295,626.30
5. Step 5: Solve for x
   x = 322,295,626.30/17,665.38
6. Step 6: Final answer
   x = 18,244.48