Finding the Fourth Proportional to 11,196.59, 16,797.30 and 3,405.20

Step by Step Solution

1. Step 1: Write the proportion equation
   11,196.59 : 16,797.30 = 3,405.20 : x
2. Step 2: Convert to fraction form
   11,196.59/16,797.30 = 3,405.20/x
3. Step 3: Cross multiply
   11,196.59x = 16,797.30 × 3,405.20
4. Step 4: Simplify right side
   11,196.59x = 57,198,081.97
5. Step 5: Solve for x
   x = 57,198,081.97/11,196.59
6. Step 6: Final answer
   x = 5,108.53