Finding the Fourth Proportional to 17,193.67, 23,728.59 and 9,640.69

Step by Step Solution

1. Step 1: Write the proportion equation
   17,193.67 : 23,728.59 = 9,640.69 : x
2. Step 2: Convert to fraction form
   17,193.67/23,728.59 = 9,640.69/x
3. Step 3: Cross multiply
   17,193.67x = 23,728.59 × 9,640.69
4. Step 4: Simplify right side
   17,193.67x = 228,759,980.33
5. Step 5: Solve for x
   x = 228,759,980.33/17,193.67
6. Step 6: Final answer
   x = 13,304.90