Finding the Fourth Proportional to 9,559.38, 13,200.66 and 7,197.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,559.38 : 13,200.66 = 7,197.42 : x
2. Step 2: Convert to fraction form
   9,559.38/13,200.66 = 7,197.42/x
3. Step 3: Cross multiply
   9,559.38x = 13,200.66 × 7,197.42
4. Step 4: Simplify right side
   9,559.38x = 95,010,694.30
5. Step 5: Solve for x
   x = 95,010,694.30/9,559.38
6. Step 6: Final answer
   x = 9,939.00