Finding the Fourth Proportional to 10,950.38, 16,421.31 and 3,553.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,950.38 : 16,421.31 = 3,553.05 : x
2. Step 2: Convert to fraction form
   10,950.38/16,421.31 = 3,553.05/x
3. Step 3: Cross multiply
   10,950.38x = 16,421.31 × 3,553.05
4. Step 4: Simplify right side
   10,950.38x = 58,345,735.50
5. Step 5: Solve for x
   x = 58,345,735.50/10,950.38
6. Step 6: Final answer
   x = 5,328.19