Finding the Fourth Proportional to 8,187.72, 12,282.42 and 3,806.46

Step by Step Solution

1. Step 1: Write the proportion equation
   8,187.72 : 12,282.42 = 3,806.46 : x
2. Step 2: Convert to fraction form
   8,187.72/12,282.42 = 3,806.46/x
3. Step 3: Cross multiply
   8,187.72x = 12,282.42 × 3,806.46
4. Step 4: Simplify right side
   8,187.72x = 46,752,540.43
5. Step 5: Solve for x
   x = 46,752,540.43/8,187.72
6. Step 6: Final answer
   x = 5,710.08