Finding the Fourth Proportional to 9,171.33, 12,662.43 and 5,773.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,171.33 : 12,662.43 = 5,773.28 : x
2. Step 2: Convert to fraction form
   9,171.33/12,662.43 = 5,773.28/x
3. Step 3: Cross multiply
   9,171.33x = 12,662.43 × 5,773.28
4. Step 4: Simplify right side
   9,171.33x = 73,103,668.91
5. Step 5: Solve for x
   x = 73,103,668.91/9,171.33
6. Step 6: Final answer
   x = 7,970.89