Finding the Fourth Proportional to 12,271.96, 18,410.46 and 3,949.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,271.96 : 18,410.46 = 3,949.48 : x
2. Step 2: Convert to fraction form
   12,271.96/18,410.46 = 3,949.48/x
3. Step 3: Cross multiply
   12,271.96x = 18,410.46 × 3,949.48
4. Step 4: Simplify right side
   12,271.96x = 72,711,743.56
5. Step 5: Solve for x
   x = 72,711,743.56/12,271.96
6. Step 6: Final answer
   x = 5,925.03