Finding the Fourth Proportional to 7,960.82, 10,989.81 and 5,456.18

Step by Step Solution

1. Step 1: Write the proportion equation
   7,960.82 : 10,989.81 = 5,456.18 : x
2. Step 2: Convert to fraction form
   7,960.82/10,989.81 = 5,456.18/x
3. Step 3: Cross multiply
   7,960.82x = 10,989.81 × 5,456.18
4. Step 4: Simplify right side
   7,960.82x = 59,962,381.53
5. Step 5: Solve for x
   x = 59,962,381.53/7,960.82
6. Step 6: Final answer
   x = 7,532.19