Finding the Fourth Proportional to 17,680.20, 24,397.50 and 9,722.76

Step by Step Solution

1. Step 1: Write the proportion equation
   17,680.20 : 24,397.50 = 9,722.76 : x
2. Step 2: Convert to fraction form
   17,680.20/24,397.50 = 9,722.76/x
3. Step 3: Cross multiply
   17,680.20x = 24,397.50 × 9,722.76
4. Step 4: Simplify right side
   17,680.20x = 237,211,037.10
5. Step 5: Solve for x
   x = 237,211,037.10/17,680.20
6. Step 6: Final answer
   x = 13,416.76