Finding the Fourth Proportional to 12,227.82, 18,342.71 and 3,909.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,227.82 : 18,342.71 = 3,909.03 : x
2. Step 2: Convert to fraction form
   12,227.82/18,342.71 = 3,909.03/x
3. Step 3: Cross multiply
   12,227.82x = 18,342.71 × 3,909.03
4. Step 4: Simplify right side
   12,227.82x = 71,702,203.67
5. Step 5: Solve for x
   x = 71,702,203.67/12,227.82
6. Step 6: Final answer
   x = 5,863.86