Finding the Fourth Proportional to 17,638.31, 24,341.73 and 9,680.45

Step by Step Solution

1. Step 1: Write the proportion equation
   17,638.31 : 24,341.73 = 9,680.45 : x
2. Step 2: Convert to fraction form
   17,638.31/24,341.73 = 9,680.45/x
3. Step 3: Cross multiply
   17,638.31x = 24,341.73 × 9,680.45
4. Step 4: Simplify right side
   17,638.31x = 235,638,900.18
5. Step 5: Solve for x
   x = 235,638,900.18/17,638.31
6. Step 6: Final answer
   x = 13,359.49