Finding the Fourth Proportional to 12,266.93, 18,401.49 and 3,947.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,266.93 : 18,401.49 = 3,947.69 : x
2. Step 2: Convert to fraction form
   12,266.93/18,401.49 = 3,947.69/x
3. Step 3: Cross multiply
   12,266.93x = 18,401.49 × 3,947.69
4. Step 4: Simplify right side
   12,266.93x = 72,643,378.06
5. Step 5: Solve for x
   x = 72,643,378.06/12,266.93
6. Step 6: Final answer
   x = 5,921.89