Finding the Fourth Proportional to 10,786.15, 14,882.70 and 8,271.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,786.15 : 14,882.70 = 8,271.10 : x
2. Step 2: Convert to fraction form
   10,786.15/14,882.70 = 8,271.10/x
3. Step 3: Cross multiply
   10,786.15x = 14,882.70 × 8,271.10
4. Step 4: Simplify right side
   10,786.15x = 123,096,299.97
5. Step 5: Solve for x
   x = 123,096,299.97/10,786.15
6. Step 6: Final answer
   x = 11,412.44