Finding the Fourth Proportional to 10,818.27, 16,216.26 and 7,849.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,818.27 : 16,216.26 = 7,849.31 : x
2. Step 2: Convert to fraction form
   10,818.27/16,216.26 = 7,849.31/x
3. Step 3: Cross multiply
   10,818.27x = 16,216.26 × 7,849.31
4. Step 4: Simplify right side
   10,818.27x = 127,286,451.78
5. Step 5: Solve for x
   x = 127,286,451.78/10,818.27
6. Step 6: Final answer
   x = 11,765.88