Finding the Fourth Proportional to 8,426.08, 12,565.40 and 8,227.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,426.08 : 12,565.40 = 8,227.36 : x
2. Step 2: Convert to fraction form
   8,426.08/12,565.40 = 8,227.36/x
3. Step 3: Cross multiply
   8,426.08x = 12,565.40 × 8,227.36
4. Step 4: Simplify right side
   8,426.08x = 103,380,069.34
5. Step 5: Solve for x
   x = 103,380,069.34/8,426.08
6. Step 6: Final answer
   x = 12,269.06