Finding the Fourth Proportional to 6,661.98, 9,194.31 and 5,540.94

Step by Step Solution

1. Step 1: Write the proportion equation
   6,661.98 : 9,194.31 = 5,540.94 : x
2. Step 2: Convert to fraction form
   6,661.98/9,194.31 = 5,540.94/x
3. Step 3: Cross multiply
   6,661.98x = 9,194.31 × 5,540.94
4. Step 4: Simplify right side
   6,661.98x = 50,945,120.05
5. Step 5: Solve for x
   x = 50,945,120.05/6,661.98
6. Step 6: Final answer
   x = 7,647.14