Finding the Fourth Proportional to 12,274.24, 18,405.90 and 3,952.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,274.24 : 18,405.90 = 3,952.72 : x
2. Step 2: Convert to fraction form
   12,274.24/18,405.90 = 3,952.72/x
3. Step 3: Cross multiply
   12,274.24x = 18,405.90 × 3,952.72
4. Step 4: Simplify right side
   12,274.24x = 72,753,369.05
5. Step 5: Solve for x
   x = 72,753,369.05/12,274.24
6. Step 6: Final answer
   x = 5,927.32