Finding the Fourth Proportional to 12,167.25, 18,251.57 and 3,402.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,167.25 : 18,251.57 = 3,402.15 : x
2. Step 2: Convert to fraction form
   12,167.25/18,251.57 = 3,402.15/x
3. Step 3: Cross multiply
   12,167.25x = 18,251.57 × 3,402.15
4. Step 4: Simplify right side
   12,167.25x = 62,094,578.88
5. Step 5: Solve for x
   x = 62,094,578.88/12,167.25
6. Step 6: Final answer
   x = 5,103.42