Finding the Fourth Proportional to 9,288.76, 12,806.76 and 7,944.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.76 : 12,806.76 = 7,944.16 : x
2. Step 2: Convert to fraction form
   9,288.76/12,806.76 = 7,944.16/x
3. Step 3: Cross multiply
   9,288.76x = 12,806.76 × 7,944.16
4. Step 4: Simplify right side
   9,288.76x = 101,738,950.52
5. Step 5: Solve for x
   x = 101,738,950.52/9,288.76
6. Step 6: Final answer
   x = 10,952.91