Finding the Fourth Proportional to 9,443.91, 14,152.09 and 8,406

Step by Step Solution

1. Step 1: Write the proportion equation
   9,443.91 : 14,152.09 = 8,406 : x
2. Step 2: Convert to fraction form
   9,443.91/14,152.09 = 8,406/x
3. Step 3: Cross multiply
   9,443.91x = 14,152.09 × 8,406
4. Step 4: Simplify right side
   9,443.91x = 118,962,468.54
5. Step 5: Solve for x
   x = 118,962,468.54/9,443.91
6. Step 6: Final answer
   x = 12,596.74