Finding the Fourth Proportional to 7,960.88, 10,989.57 and 5,836.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,960.88 : 10,989.57 = 5,836.42 : x
2. Step 2: Convert to fraction form
   7,960.88/10,989.57 = 5,836.42/x
3. Step 3: Cross multiply
   7,960.88x = 10,989.57 × 5,836.42
4. Step 4: Simplify right side
   7,960.88x = 64,139,746.14
5. Step 5: Solve for x
   x = 64,139,746.14/7,960.88
6. Step 6: Final answer
   x = 8,056.87