Finding the Fourth Proportional to 12,171.38, 18,257.71 and 3,852.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171.38 : 18,257.71 = 3,852.28 : x
2. Step 2: Convert to fraction form
   12,171.38/18,257.71 = 3,852.28/x
3. Step 3: Cross multiply
   12,171.38x = 18,257.71 × 3,852.28
4. Step 4: Simplify right side
   12,171.38x = 70,333,719.79
5. Step 5: Solve for x
   x = 70,333,719.79/12,171.38
6. Step 6: Final answer
   x = 5,778.62