Finding the Fourth Proportional to 10,676.72, 16,017.96 and 9,648.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,676.72 : 16,017.96 = 9,648.56 : x
2. Step 2: Convert to fraction form
   10,676.72/16,017.96 = 9,648.56/x
3. Step 3: Cross multiply
   10,676.72x = 16,017.96 × 9,648.56
4. Step 4: Simplify right side
   10,676.72x = 154,550,248.14
5. Step 5: Solve for x
   x = 154,550,248.14/10,676.72
6. Step 6: Final answer
   x = 14,475.44