Finding the Fourth Proportional to 17,738.32, 24,477.76 and 9,780.60

Step by Step Solution

1. Step 1: Write the proportion equation
   17,738.32 : 24,477.76 = 9,780.60 : x
2. Step 2: Convert to fraction form
   17,738.32/24,477.76 = 9,780.60/x
3. Step 3: Cross multiply
   17,738.32x = 24,477.76 × 9,780.60
4. Step 4: Simplify right side
   17,738.32x = 239,407,179.46
5. Step 5: Solve for x
   x = 239,407,179.46/17,738.32
6. Step 6: Final answer
   x = 13,496.61