Finding the Fourth Proportional to 12,302.47, 18,456.58 and 3,982.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,302.47 : 18,456.58 = 3,982.15 : x
2. Step 2: Convert to fraction form
   12,302.47/18,456.58 = 3,982.15/x
3. Step 3: Cross multiply
   12,302.47x = 18,456.58 × 3,982.15
4. Step 4: Simplify right side
   12,302.47x = 73,496,870.05
5. Step 5: Solve for x
   x = 73,496,870.05/12,302.47
6. Step 6: Final answer
   x = 5,974.16