Finding the Fourth Proportional to 11,198.79, 16,801.83 and 5,355.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,198.79 : 16,801.83 = 5,355.86 : x
2. Step 2: Convert to fraction form
   11,198.79/16,801.83 = 5,355.86/x
3. Step 3: Cross multiply
   11,198.79x = 16,801.83 × 5,355.86
4. Step 4: Simplify right side
   11,198.79x = 89,988,165.21
5. Step 5: Solve for x
   x = 89,988,165.21/11,198.79
6. Step 6: Final answer
   x = 8,035.53