Finding the Fourth Proportional to 8,506.38, 12,758.76 and 2,662.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,506.38 : 12,758.76 = 2,662.50 : x
2. Step 2: Convert to fraction form
   8,506.38/12,758.76 = 2,662.50/x
3. Step 3: Cross multiply
   8,506.38x = 12,758.76 × 2,662.50
4. Step 4: Simplify right side
   8,506.38x = 33,970,198.50
5. Step 5: Solve for x
   x = 33,970,198.50/8,506.38
6. Step 6: Final answer
   x = 3,993.50