Finding the Fourth Proportional to 23,488.69, 32,414.34 and 12,879

Step by Step Solution

1. Step 1: Write the proportion equation
   23,488.69 : 32,414.34 = 12,879 : x
2. Step 2: Convert to fraction form
   23,488.69/32,414.34 = 12,879/x
3. Step 3: Cross multiply
   23,488.69x = 32,414.34 × 12,879
4. Step 4: Simplify right side
   23,488.69x = 417,464,284.86
5. Step 5: Solve for x
   x = 417,464,284.86/23,488.69
6. Step 6: Final answer
   x = 17,772.99