Finding the Fourth Proportional to 11,208.72, 16,797.69 and 5,665.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,208.72 : 16,797.69 = 5,665.77 : x
2. Step 2: Convert to fraction form
   11,208.72/16,797.69 = 5,665.77/x
3. Step 3: Cross multiply
   11,208.72x = 16,797.69 × 5,665.77
4. Step 4: Simplify right side
   11,208.72x = 95,171,848.07
5. Step 5: Solve for x
   x = 95,171,848.07/11,208.72
6. Step 6: Final answer
   x = 8,490.88