Finding the Fourth Proportional to 10,338.28, 14,266.78 and 5,622.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,338.28 : 14,266.78 = 5,622.56 : x
2. Step 2: Convert to fraction form
   10,338.28/14,266.78 = 5,622.56/x
3. Step 3: Cross multiply
   10,338.28x = 14,266.78 × 5,622.56
4. Step 4: Simplify right side
   10,338.28x = 80,215,906.54
5. Step 5: Solve for x
   x = 80,215,906.54/10,338.28
6. Step 6: Final answer
   x = 7,759.11