Finding the Fourth Proportional to 10,676.97, 16,018.34 and 9,648.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,676.97 : 16,018.34 = 9,648.81 : x
2. Step 2: Convert to fraction form
   10,676.97/16,018.34 = 9,648.81/x
3. Step 3: Cross multiply
   10,676.97x = 16,018.34 × 9,648.81
4. Step 4: Simplify right side
   10,676.97x = 154,557,870.93
5. Step 5: Solve for x
   x = 154,557,870.93/10,676.97
6. Step 6: Final answer
   x = 14,475.82