Finding the Fourth Proportional to 10,810.24, 16,212.45 and 4,145.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.24 : 16,212.45 = 4,145.29 : x
2. Step 2: Convert to fraction form
   10,810.24/16,212.45 = 4,145.29/x
3. Step 3: Cross multiply
   10,810.24x = 16,212.45 × 4,145.29
4. Step 4: Simplify right side
   10,810.24x = 67,205,306.86
5. Step 5: Solve for x
   x = 67,205,306.86/10,810.24
6. Step 6: Final answer
   x = 6,216.82