Finding the Fourth Proportional to 12,267.46, 18,401.58 and 3,947.74

Step by Step Solution

1. Step 1: Write the proportion equation
   12,267.46 : 18,401.58 = 3,947.74 : x
2. Step 2: Convert to fraction form
   12,267.46/18,401.58 = 3,947.74/x
3. Step 3: Cross multiply
   12,267.46x = 18,401.58 × 3,947.74
4. Step 4: Simplify right side
   12,267.46x = 72,644,653.43
5. Step 5: Solve for x
   x = 72,644,653.43/12,267.46
6. Step 6: Final answer
   x = 5,921.74