Finding the Fourth Proportional to 7,422.78, 10,243.41 and 4,065.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,422.78 : 10,243.41 = 4,065.59 : x
2. Step 2: Convert to fraction form
   7,422.78/10,243.41 = 4,065.59/x
3. Step 3: Cross multiply
   7,422.78x = 10,243.41 × 4,065.59
4. Step 4: Simplify right side
   7,422.78x = 41,645,505.26
5. Step 5: Solve for x
   x = 41,645,505.26/7,422.78
6. Step 6: Final answer
   x = 5,610.50