Finding the Fourth Proportional to 12,269.28, 18,406.86 and 3,950.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,269.28 : 18,406.86 = 3,950.07 : x
2. Step 2: Convert to fraction form
   12,269.28/18,406.86 = 3,950.07/x
3. Step 3: Cross multiply
   12,269.28x = 18,406.86 × 3,950.07
4. Step 4: Simplify right side
   12,269.28x = 72,708,439.69
5. Step 5: Solve for x
   x = 72,708,439.69/12,269.28
6. Step 6: Final answer
   x = 5,926.06