Finding the Fourth Proportional to 9,597.87, 13,243.59 and 5,405.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,597.87 : 13,243.59 = 5,405.31 : x
2. Step 2: Convert to fraction form
   9,597.87/13,243.59 = 5,405.31/x
3. Step 3: Cross multiply
   9,597.87x = 13,243.59 × 5,405.31
4. Step 4: Simplify right side
   9,597.87x = 71,585,709.46
5. Step 5: Solve for x
   x = 71,585,709.46/9,597.87
6. Step 6: Final answer
   x = 7,458.50