Finding the Fourth Proportional to 12,284.16, 18,425.60 and 3,964.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,284.16 : 18,425.60 = 3,964.02 : x
2. Step 2: Convert to fraction form
   12,284.16/18,425.60 = 3,964.02/x
3. Step 3: Cross multiply
   12,284.16x = 18,425.60 × 3,964.02
4. Step 4: Simplify right side
   12,284.16x = 73,039,446.91
5. Step 5: Solve for x
   x = 73,039,446.91/12,284.16
6. Step 6: Final answer
   x = 5,945.82