Finding the Fourth Proportional to 9,666.03, 13,363.49 and 7,144.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,666.03 : 13,363.49 = 7,144.16 : x
2. Step 2: Convert to fraction form
   9,666.03/13,363.49 = 7,144.16/x
3. Step 3: Cross multiply
   9,666.03x = 13,363.49 × 7,144.16
4. Step 4: Simplify right side
   9,666.03x = 95,470,910.72
5. Step 5: Solve for x
   x = 95,470,910.72/9,666.03
6. Step 6: Final answer
   x = 9,876.95