Finding the Fourth Proportional to 8,960.72, 13,444.16 and 5,266.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,960.72 : 13,444.16 = 5,266.04 : x
2. Step 2: Convert to fraction form
   8,960.72/13,444.16 = 5,266.04/x
3. Step 3: Cross multiply
   8,960.72x = 13,444.16 × 5,266.04
4. Step 4: Simplify right side
   8,960.72x = 70,797,390.78
5. Step 5: Solve for x
   x = 70,797,390.78/8,960.72
6. Step 6: Final answer
   x = 7,900.86