Finding the Fourth Proportional to 11,216.24, 16,825.90 and 3,818.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,216.24 : 16,825.90 = 3,818.72 : x
2. Step 2: Convert to fraction form
   11,216.24/16,825.90 = 3,818.72/x
3. Step 3: Cross multiply
   11,216.24x = 16,825.90 × 3,818.72
4. Step 4: Simplify right side
   11,216.24x = 64,253,400.85
5. Step 5: Solve for x
   x = 64,253,400.85/11,216.24
6. Step 6: Final answer
   x = 5,728.60