Finding the Fourth Proportional to 7,544.10, 11,271.50 and 7,285.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,544.10 : 11,271.50 = 7,285.71 : x
2. Step 2: Convert to fraction form
   7,544.10/11,271.50 = 7,285.71/x
3. Step 3: Cross multiply
   7,544.10x = 11,271.50 × 7,285.71
4. Step 4: Simplify right side
   7,544.10x = 82,120,843.84
5. Step 5: Solve for x
   x = 82,120,843.84/7,544.10
6. Step 6: Final answer
   x = 10,885.44