Finding the Fourth Proportional to 11,217.92, 16,826.27 and 3,426.13

Step by Step Solution

1. Step 1: Write the proportion equation
   11,217.92 : 16,826.27 = 3,426.13 : x
2. Step 2: Convert to fraction form
   11,217.92/16,826.27 = 3,426.13/x
3. Step 3: Cross multiply
   11,217.92x = 16,826.27 × 3,426.13
4. Step 4: Simplify right side
   11,217.92x = 57,648,904.30
5. Step 5: Solve for x
   x = 57,648,904.30/11,217.92
6. Step 6: Final answer
   x = 5,139.00