Finding the Fourth Proportional to 17,738.72, 24,479.60 and 9,781.23

Step by Step Solution

1. Step 1: Write the proportion equation
   17,738.72 : 24,479.60 = 9,781.23 : x
2. Step 2: Convert to fraction form
   17,738.72/24,479.60 = 9,781.23/x
3. Step 3: Cross multiply
   17,738.72x = 24,479.60 × 9,781.23
4. Step 4: Simplify right side
   17,738.72x = 239,440,597.91
5. Step 5: Solve for x
   x = 239,440,597.91/17,738.72
6. Step 6: Final answer
   x = 13,498.19