Finding the Fourth Proportional to 10,676.28, 14,738.97 and 7,145.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,676.28 : 14,738.97 = 7,145.49 : x
2. Step 2: Convert to fraction form
   10,676.28/14,738.97 = 7,145.49/x
3. Step 3: Cross multiply
   10,676.28x = 14,738.97 × 7,145.49
4. Step 4: Simplify right side
   10,676.28x = 105,317,162.75
5. Step 5: Solve for x
   x = 105,317,162.75/10,676.28
6. Step 6: Final answer
   x = 9,864.59