Finding the Fourth Proportional to 12,167.52, 18,251.30 and 3,959.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,167.52 : 18,251.30 = 3,959.52 : x
2. Step 2: Convert to fraction form
   12,167.52/18,251.30 = 3,959.52/x
3. Step 3: Cross multiply
   12,167.52x = 18,251.30 × 3,959.52
4. Step 4: Simplify right side
   12,167.52x = 72,266,387.38
5. Step 5: Solve for x
   x = 72,266,387.38/12,167.52
6. Step 6: Final answer
   x = 5,939.29