Finding the Fourth Proportional to 10,922.24, 15,064.56 and 8,559.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.24 : 15,064.56 = 8,559.68 : x
2. Step 2: Convert to fraction form
   10,922.24/15,064.56 = 8,559.68/x
3. Step 3: Cross multiply
   10,922.24x = 15,064.56 × 8,559.68
4. Step 4: Simplify right side
   10,922.24x = 128,947,812.94
5. Step 5: Solve for x
   x = 128,947,812.94/10,922.24
6. Step 6: Final answer
   x = 11,805.99