Finding the Fourth Proportional to 6,422.85, 9,618.89 and 3,294.63

Step by Step Solution

1. Step 1: Write the proportion equation
   6,422.85 : 9,618.89 = 3,294.63 : x
2. Step 2: Convert to fraction form
   6,422.85/9,618.89 = 3,294.63/x
3. Step 3: Cross multiply
   6,422.85x = 9,618.89 × 3,294.63
4. Step 4: Simplify right side
   6,422.85x = 31,690,667.09
5. Step 5: Solve for x
   x = 31,690,667.09/6,422.85
6. Step 6: Final answer
   x = 4,934.05