Finding the Fourth Proportional to 9,585.79, 13,229.01 and 5,394.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,585.79 : 13,229.01 = 5,394.31 : x
2. Step 2: Convert to fraction form
   9,585.79/13,229.01 = 5,394.31/x
3. Step 3: Cross multiply
   9,585.79x = 13,229.01 × 5,394.31
4. Step 4: Simplify right side
   9,585.79x = 71,361,380.93
5. Step 5: Solve for x
   x = 71,361,380.93/9,585.79
6. Step 6: Final answer
   x = 7,444.50