Finding the Fourth Proportional to 12,216.97, 18,328.22 and 3,897.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,216.97 : 18,328.22 = 3,897.48 : x
2. Step 2: Convert to fraction form
   12,216.97/18,328.22 = 3,897.48/x
3. Step 3: Cross multiply
   12,216.97x = 18,328.22 × 3,897.48
4. Step 4: Simplify right side
   12,216.97x = 71,433,870.89
5. Step 5: Solve for x
   x = 71,433,870.89/12,216.97
6. Step 6: Final answer
   x = 5,847.10