Finding the Fourth Proportional to 16,605.78, 22,922.38 and 12,164.81

Step by Step Solution

1. Step 1: Write the proportion equation
   16,605.78 : 22,922.38 = 12,164.81 : x
2. Step 2: Convert to fraction form
   16,605.78/22,922.38 = 12,164.81/x
3. Step 3: Cross multiply
   16,605.78x = 22,922.38 × 12,164.81
4. Step 4: Simplify right side
   16,605.78x = 278,846,345.40
5. Step 5: Solve for x
   x = 278,846,345.40/16,605.78
6. Step 6: Final answer
   x = 16,792.12