Finding the Fourth Proportional to 12,262.89, 16,923.15 and 8,684.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,262.89 : 16,923.15 = 8,684.25 : x
2. Step 2: Convert to fraction form
   12,262.89/16,923.15 = 8,684.25/x
3. Step 3: Cross multiply
   12,262.89x = 16,923.15 × 8,684.25
4. Step 4: Simplify right side
   12,262.89x = 146,964,969.14
5. Step 5: Solve for x
   x = 146,964,969.14/12,262.89
6. Step 6: Final answer
   x = 11,984.53