Finding the Fourth Proportional to 16,860.89, 23,268.03 and 9,307.23

Step by Step Solution

1. Step 1: Write the proportion equation
   16,860.89 : 23,268.03 = 9,307.23 : x
2. Step 2: Convert to fraction form
   16,860.89/23,268.03 = 9,307.23/x
3. Step 3: Cross multiply
   16,860.89x = 23,268.03 × 9,307.23
4. Step 4: Simplify right side
   16,860.89x = 216,560,802.15
5. Step 5: Solve for x
   x = 216,560,802.15/16,860.89
6. Step 6: Final answer
   x = 12,843.97