Finding the Fourth Proportional to 10,890.45, 16,337.97 and 3,495.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.45 : 16,337.97 = 3,495.42 : x
2. Step 2: Convert to fraction form
   10,890.45/16,337.97 = 3,495.42/x
3. Step 3: Cross multiply
   10,890.45x = 16,337.97 × 3,495.42
4. Step 4: Simplify right side
   10,890.45x = 57,108,067.10
5. Step 5: Solve for x
   x = 57,108,067.10/10,890.45
6. Step 6: Final answer
   x = 5,243.87