Finding the Fourth Proportional to 9,478.98, 14,223.27 and 6,394.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,478.98 : 14,223.27 = 6,394.50 : x
2. Step 2: Convert to fraction form
   9,478.98/14,223.27 = 6,394.50/x
3. Step 3: Cross multiply
   9,478.98x = 14,223.27 × 6,394.50
4. Step 4: Simplify right side
   9,478.98x = 90,950,700.02
5. Step 5: Solve for x
   x = 90,950,700.02/9,478.98
6. Step 6: Final answer
   x = 9,594.99