Finding the Fourth Proportional to 7,422.81, 10,243.59 and 4,065.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,422.81 : 10,243.59 = 4,065.56 : x
2. Step 2: Convert to fraction form
   7,422.81/10,243.59 = 4,065.56/x
3. Step 3: Cross multiply
   7,422.81x = 10,243.59 × 4,065.56
4. Step 4: Simplify right side
   7,422.81x = 41,645,929.76
5. Step 5: Solve for x
   x = 41,645,929.76/7,422.81
6. Step 6: Final answer
   x = 5,610.53