Finding the Fourth Proportional to 9,969.89, 13,743.34 and 8,198.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.89 : 13,743.34 = 8,198.42 : x
2. Step 2: Convert to fraction form
   9,969.89/13,743.34 = 8,198.42/x
3. Step 3: Cross multiply
   9,969.89x = 13,743.34 × 8,198.42
4. Step 4: Simplify right side
   9,969.89x = 112,673,584.31
5. Step 5: Solve for x
   x = 112,673,584.31/9,969.89
6. Step 6: Final answer
   x = 11,301.39