Finding the Fourth Proportional to 10,899.42, 16,344.81 and 7,028.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,899.42 : 16,344.81 = 7,028.70 : x
2. Step 2: Convert to fraction form
   10,899.42/16,344.81 = 7,028.70/x
3. Step 3: Cross multiply
   10,899.42x = 16,344.81 × 7,028.70
4. Step 4: Simplify right side
   10,899.42x = 114,882,766.05
5. Step 5: Solve for x
   x = 114,882,766.05/10,899.42
6. Step 6: Final answer
   x = 10,540.26