Finding the Fourth Proportional to 9,399.46, 14,071.78 and 8,146.26

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.46 : 14,071.78 = 8,146.26 : x
2. Step 2: Convert to fraction form
   9,399.46/14,071.78 = 8,146.26/x
3. Step 3: Cross multiply
   9,399.46x = 14,071.78 × 8,146.26
4. Step 4: Simplify right side
   9,399.46x = 114,632,378.54
5. Step 5: Solve for x
   x = 114,632,378.54/9,399.46
6. Step 6: Final answer
   x = 12,195.63