Finding the Fourth Proportional to 12,223.06, 18,322.88 and 3,898.49

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.06 : 18,322.88 = 3,898.49 : x
2. Step 2: Convert to fraction form
   12,223.06/18,322.88 = 3,898.49/x
3. Step 3: Cross multiply
   12,223.06x = 18,322.88 × 3,898.49
4. Step 4: Simplify right side
   12,223.06x = 71,431,482.58
5. Step 5: Solve for x
   x = 71,431,482.58/12,223.06
6. Step 6: Final answer
   x = 5,843.99