Finding the Fourth Proportional to 16,168.59, 22,260.51 and 12,579.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,168.59 : 22,260.51 = 12,579.15 : x
2. Step 2: Convert to fraction form
   16,168.59/22,260.51 = 12,579.15/x
3. Step 3: Cross multiply
   16,168.59x = 22,260.51 × 12,579.15
4. Step 4: Simplify right side
   16,168.59x = 280,018,294.37
5. Step 5: Solve for x
   x = 280,018,294.37/16,168.59
6. Step 6: Final answer
   x = 17,318.66