Finding the Fourth Proportional to 16,668.53, 23,002.42 and 9,114.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,668.53 : 23,002.42 = 9,114.79 : x
2. Step 2: Convert to fraction form
   16,668.53/23,002.42 = 9,114.79/x
3. Step 3: Cross multiply
   16,668.53x = 23,002.42 × 9,114.79
4. Step 4: Simplify right side
   16,668.53x = 209,662,227.79
5. Step 5: Solve for x
   x = 209,662,227.79/16,668.53
6. Step 6: Final answer
   x = 12,578.33