Finding the Fourth Proportional to 17,665.82, 24,378.85 and 9,708.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,665.82 : 24,378.85 = 9,708.56 : x
2. Step 2: Convert to fraction form
   17,665.82/24,378.85 = 9,708.56/x
3. Step 3: Cross multiply
   17,665.82x = 24,378.85 × 9,708.56
4. Step 4: Simplify right side
   17,665.82x = 236,683,527.96
5. Step 5: Solve for x
   x = 236,683,527.96/17,665.82
6. Step 6: Final answer
   x = 13,397.82