Finding the Fourth Proportional to 8,506.31, 12,744.89 and 6,756.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,506.31 : 12,744.89 = 6,756.71 : x
2. Step 2: Convert to fraction form
   8,506.31/12,744.89 = 6,756.71/x
3. Step 3: Cross multiply
   8,506.31x = 12,744.89 × 6,756.71
4. Step 4: Simplify right side
   8,506.31x = 86,113,491.93
5. Step 5: Solve for x
   x = 86,113,491.93/8,506.31
6. Step 6: Final answer
   x = 10,123.48