Finding the Fourth Proportional to 9,401.95, 12,945.15 and 7,982.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,401.95 : 12,945.15 = 7,982.68 : x
2. Step 2: Convert to fraction form
   9,401.95/12,945.15 = 7,982.68/x
3. Step 3: Cross multiply
   9,401.95x = 12,945.15 × 7,982.68
4. Step 4: Simplify right side
   9,401.95x = 103,336,990.00
5. Step 5: Solve for x
   x = 103,336,990.00/9,401.95
6. Step 6: Final answer
   x = 10,991.02