Finding the Fourth Proportional to 12,290.59, 18,431.94 and 3,968.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290.59 : 18,431.94 = 3,968.83 : x
2. Step 2: Convert to fraction form
   12,290.59/18,431.94 = 3,968.83/x
3. Step 3: Cross multiply
   12,290.59x = 18,431.94 × 3,968.83
4. Step 4: Simplify right side
   12,290.59x = 73,153,144.27
5. Step 5: Solve for x
   x = 73,153,144.27/12,290.59
6. Step 6: Final answer
   x = 5,951.97