Finding the Fourth Proportional to 17,621.22, 24,317.34 and 9,663.57

Step by Step Solution

1. Step 1: Write the proportion equation
   17,621.22 : 24,317.34 = 9,663.57 : x
2. Step 2: Convert to fraction form
   17,621.22/24,317.34 = 9,663.57/x
3. Step 3: Cross multiply
   17,621.22x = 24,317.34 × 9,663.57
4. Step 4: Simplify right side
   17,621.22x = 234,992,317.30
5. Step 5: Solve for x
   x = 234,992,317.30/17,621.22
6. Step 6: Final answer
   x = 13,335.76