Finding the Fourth Proportional to 8,506.27, 12,754.50 and 3,306.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,506.27 : 12,754.50 = 3,306.07 : x
2. Step 2: Convert to fraction form
   8,506.27/12,754.50 = 3,306.07/x
3. Step 3: Cross multiply
   8,506.27x = 12,754.50 × 3,306.07
4. Step 4: Simplify right side
   8,506.27x = 42,167,269.82
5. Step 5: Solve for x
   x = 42,167,269.82/8,506.27
6. Step 6: Final answer
   x = 4,957.20