Finding the Fourth Proportional to 10,883.78, 16,327.12 and 4,308.43

Step by Step Solution

1. Step 1: Write the proportion equation
   10,883.78 : 16,327.12 = 4,308.43 : x
2. Step 2: Convert to fraction form
   10,883.78/16,327.12 = 4,308.43/x
3. Step 3: Cross multiply
   10,883.78x = 16,327.12 × 4,308.43
4. Step 4: Simplify right side
   10,883.78x = 70,344,231.40
5. Step 5: Solve for x
   x = 70,344,231.40/10,883.78
6. Step 6: Final answer
   x = 6,463.22