Finding the Fourth Proportional to 17,738.48, 24,480.20 and 9,780.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,738.48 : 24,480.20 = 9,780.69 : x
2. Step 2: Convert to fraction form
   17,738.48/24,480.20 = 9,780.69/x
3. Step 3: Cross multiply
   17,738.48x = 24,480.20 × 9,780.69
4. Step 4: Simplify right side
   17,738.48x = 239,433,076.03
5. Step 5: Solve for x
   x = 239,433,076.03/17,738.48
6. Step 6: Final answer
   x = 13,497.95