Finding the Fourth Proportional to 8,494.28, 12,742.23 and 3,300.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,494.28 : 12,742.23 = 3,300.56 : x
2. Step 2: Convert to fraction form
   8,494.28/12,742.23 = 3,300.56/x
3. Step 3: Cross multiply
   8,494.28x = 12,742.23 × 3,300.56
4. Step 4: Simplify right side
   8,494.28x = 42,056,494.65
5. Step 5: Solve for x
   x = 42,056,494.65/8,494.28
6. Step 6: Final answer
   x = 4,951.15