Finding the Fourth Proportional to 13,857.56, 19,122.72 and 7,568.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,857.56 : 19,122.72 = 7,568.72 : x
2. Step 2: Convert to fraction form
   13,857.56/19,122.72 = 7,568.72/x
3. Step 3: Cross multiply
   13,857.56x = 19,122.72 × 7,568.72
4. Step 4: Simplify right side
   13,857.56x = 144,734,513.32
5. Step 5: Solve for x
   x = 144,734,513.32/13,857.56
6. Step 6: Final answer
   x = 10,444.44