Finding the Fourth Proportional to 8,614.27, 12,920.94 and 2,770.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,614.27 : 12,920.94 = 2,770.42 : x
2. Step 2: Convert to fraction form
   8,614.27/12,920.94 = 2,770.42/x
3. Step 3: Cross multiply
   8,614.27x = 12,920.94 × 2,770.42
4. Step 4: Simplify right side
   8,614.27x = 35,796,430.59
5. Step 5: Solve for x
   x = 35,796,430.59/8,614.27
6. Step 6: Final answer
   x = 4,155.48