Finding the Fourth Proportional to 17,638.89, 24,341.85 and 9,681.42

Step by Step Solution

1. Step 1: Write the proportion equation
   17,638.89 : 24,341.85 = 9,681.42 : x
2. Step 2: Convert to fraction form
   17,638.89/24,341.85 = 9,681.42/x
3. Step 3: Cross multiply
   17,638.89x = 24,341.85 × 9,681.42
4. Step 4: Simplify right side
   17,638.89x = 235,663,673.43
5. Step 5: Solve for x
   x = 235,663,673.43/17,638.89
6. Step 6: Final answer
   x = 13,360.46