Finding the Fourth Proportional to 11,185.05, 16,777.60 and 5,340.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,185.05 : 16,777.60 = 5,340.30 : x
2. Step 2: Convert to fraction form
   11,185.05/16,777.60 = 5,340.30/x
3. Step 3: Cross multiply
   11,185.05x = 16,777.60 × 5,340.30
4. Step 4: Simplify right side
   11,185.05x = 89,597,341.01
5. Step 5: Solve for x
   x = 89,597,341.01/11,185.05
6. Step 6: Final answer
   x = 8,010.45