Finding the Fourth Proportional to 8,436.27, 12,654.23 and 2,814.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,436.27 : 12,654.23 = 2,814.35 : x
2. Step 2: Convert to fraction form
   8,436.27/12,654.23 = 2,814.35/x
3. Step 3: Cross multiply
   8,436.27x = 12,654.23 × 2,814.35
4. Step 4: Simplify right side
   8,436.27x = 35,613,432.20
5. Step 5: Solve for x
   x = 35,613,432.20/8,436.27
6. Step 6: Final answer
   x = 4,221.47