Finding the Fourth Proportional to 17,162.48, 23,694.32 and 12,879

Step by Step Solution

1. Step 1: Write the proportion equation
   17,162.48 : 23,694.32 = 12,879 : x
2. Step 2: Convert to fraction form
   17,162.48/23,694.32 = 12,879/x
3. Step 3: Cross multiply
   17,162.48x = 23,694.32 × 12,879
4. Step 4: Simplify right side
   17,162.48x = 305,159,179.48
5. Step 5: Solve for x
   x = 305,159,179.48/17,162.48
6. Step 6: Final answer
   x = 17,780.60