Finding the Fourth Proportional to 17,697.72, 24,422.20 and 9,739.88

Step by Step Solution

1. Step 1: Write the proportion equation
   17,697.72 : 24,422.20 = 9,739.88 : x
2. Step 2: Convert to fraction form
   17,697.72/24,422.20 = 9,739.88/x
3. Step 3: Cross multiply
   17,697.72x = 24,422.20 × 9,739.88
4. Step 4: Simplify right side
   17,697.72x = 237,869,297.34
5. Step 5: Solve for x
   x = 237,869,297.34/17,697.72
6. Step 6: Final answer
   x = 13,440.67