Finding the Fourth Proportional to 7,422.56, 10,243.25 and 4,065.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,422.56 : 10,243.25 = 4,065.31 : x
2. Step 2: Convert to fraction form
   7,422.56/10,243.25 = 4,065.31/x
3. Step 3: Cross multiply
   7,422.56x = 10,243.25 × 4,065.31
4. Step 4: Simplify right side
   7,422.56x = 41,641,986.66
5. Step 5: Solve for x
   x = 41,641,986.66/7,422.56
6. Step 6: Final answer
   x = 5,610.19