Finding the Fourth Proportional to 10,986.30, 15,162.17 and 6,271.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,986.30 : 15,162.17 = 6,271.29 : x
2. Step 2: Convert to fraction form
   10,986.30/15,162.17 = 6,271.29/x
3. Step 3: Cross multiply
   10,986.30x = 15,162.17 × 6,271.29
4. Step 4: Simplify right side
   10,986.30x = 95,086,365.10
5. Step 5: Solve for x
   x = 95,086,365.10/10,986.30
6. Step 6: Final answer
   x = 8,654.99