Finding the Fourth Proportional to 6,446.94, 9,667.56 and 3,328.70

Step by Step Solution

1. Step 1: Write the proportion equation
   6,446.94 : 9,667.56 = 3,328.70 : x
2. Step 2: Convert to fraction form
   6,446.94/9,667.56 = 3,328.70/x
3. Step 3: Cross multiply
   6,446.94x = 9,667.56 × 3,328.70
4. Step 4: Simplify right side
   6,446.94x = 32,180,406.97
5. Step 5: Solve for x
   x = 32,180,406.97/6,446.94
6. Step 6: Final answer
   x = 4,991.58