Finding the Fourth Proportional to 17,238.74, 23,788.54 and 9,685.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,238.74 : 23,788.54 = 9,685.38 : x
2. Step 2: Convert to fraction form
   17,238.74/23,788.54 = 9,685.38/x
3. Step 3: Cross multiply
   17,238.74x = 23,788.54 × 9,685.38
4. Step 4: Simplify right side
   17,238.74x = 230,401,049.55
5. Step 5: Solve for x
   x = 230,401,049.55/17,238.74
6. Step 6: Final answer
   x = 13,365.31