Finding the Fourth Proportional to 17,676.56, 24,390.15 and 9,915.62

Step by Step Solution

1. Step 1: Write the proportion equation
   17,676.56 : 24,390.15 = 9,915.62 : x
2. Step 2: Convert to fraction form
   17,676.56/24,390.15 = 9,915.62/x
3. Step 3: Cross multiply
   17,676.56x = 24,390.15 × 9,915.62
4. Step 4: Simplify right side
   17,676.56x = 241,843,428.66
5. Step 5: Solve for x
   x = 241,843,428.66/17,676.56
6. Step 6: Final answer
   x = 13,681.59