Finding the Fourth Proportional to 13,456, 18,569.28 and 7,568

Step by Step Solution

1. Step 1: Write the proportion equation
   13,456 : 18,569.28 = 7,568 : x
2. Step 2: Convert to fraction form
   13,456/18,569.28 = 7,568/x
3. Step 3: Cross multiply
   13,456x = 18,569.28 × 7,568
4. Step 4: Simplify right side
   13,456x = 140,532,311.04
5. Step 5: Solve for x
   x = 140,532,311.04/13,456
6. Step 6: Final answer
   x = 10,443.84