Finding the Fourth Proportional to 9,658.18, 13,328.58 and 5,409.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,658.18 : 13,328.58 = 5,409.23 : x
2. Step 2: Convert to fraction form
   9,658.18/13,328.58 = 5,409.23/x
3. Step 3: Cross multiply
   9,658.18x = 13,328.58 × 5,409.23
4. Step 4: Simplify right side
   9,658.18x = 72,097,321.47
5. Step 5: Solve for x
   x = 72,097,321.47/9,658.18
6. Step 6: Final answer
   x = 7,464.90