Finding the Fourth Proportional to 9,722.31, 13,418.43 and 5,475.27

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.31 : 13,418.43 = 5,475.27 : x
2. Step 2: Convert to fraction form
   9,722.31/13,418.43 = 5,475.27/x
3. Step 3: Cross multiply
   9,722.31x = 13,418.43 × 5,475.27
4. Step 4: Simplify right side
   9,722.31x = 73,469,527.23
5. Step 5: Solve for x
   x = 73,469,527.23/9,722.31
6. Step 6: Final answer
   x = 7,556.80