Finding the Fourth Proportional to 16,179.72, 22,323.96 and 12,406.74

Step by Step Solution

1. Step 1: Write the proportion equation
   16,179.72 : 22,323.96 = 12,406.74 : x
2. Step 2: Convert to fraction form
   16,179.72/22,323.96 = 12,406.74/x
3. Step 3: Cross multiply
   16,179.72x = 22,323.96 × 12,406.74
4. Step 4: Simplify right side
   16,179.72x = 276,967,567.49
5. Step 5: Solve for x
   x = 276,967,567.49/16,179.72
6. Step 6: Final answer
   x = 17,118.19