Finding the Fourth Proportional to 17,738.60, 24,479.24 and 9,781.31

Step by Step Solution

1. Step 1: Write the proportion equation
   17,738.60 : 24,479.24 = 9,781.31 : x
2. Step 2: Convert to fraction form
   17,738.60/24,479.24 = 9,781.31/x
3. Step 3: Cross multiply
   17,738.60x = 24,479.24 × 9,781.31
4. Step 4: Simplify right side
   17,738.60x = 239,439,047.30
5. Step 5: Solve for x
   x = 239,439,047.30/17,738.60
6. Step 6: Final answer
   x = 13,498.20