Finding the Fourth Proportional to 6,766.23, 10,149.96 and 2,086.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,766.23 : 10,149.96 = 2,086.31 : x
2. Step 2: Convert to fraction form
   6,766.23/10,149.96 = 2,086.31/x
3. Step 3: Cross multiply
   6,766.23x = 10,149.96 × 2,086.31
4. Step 4: Simplify right side
   6,766.23x = 21,175,927.42
5. Step 5: Solve for x
   x = 21,175,927.42/6,766.23
6. Step 6: Final answer
   x = 3,129.65