Finding the Fourth Proportional to 10,338.42, 14,266.98 and 5,622.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,338.42 : 14,266.98 = 5,622.78 : x
2. Step 2: Convert to fraction form
   10,338.42/14,266.98 = 5,622.78/x
3. Step 3: Cross multiply
   10,338.42x = 14,266.98 × 5,622.78
4. Step 4: Simplify right side
   10,338.42x = 80,220,089.80
5. Step 5: Solve for x
   x = 80,220,089.80/10,338.42
6. Step 6: Final answer
   x = 7,759.41