Finding the Fourth Proportional to 12,217.75, 18,326.72 and 3,897.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,217.75 : 18,326.72 = 3,897.83 : x
2. Step 2: Convert to fraction form
   12,217.75/18,326.72 = 3,897.83/x
3. Step 3: Cross multiply
   12,217.75x = 18,326.72 × 3,897.83
4. Step 4: Simplify right side
   12,217.75x = 71,434,494.58
5. Step 5: Solve for x
   x = 71,434,494.58/12,217.75
6. Step 6: Final answer
   x = 5,846.78