Finding the Fourth Proportional to 30,919.92, 42,662.37 and 17,488.26

Step by Step Solution

1. Step 1: Write the proportion equation
   30,919.92 : 42,662.37 = 17,488.26 : x
2. Step 2: Convert to fraction form
   30,919.92/42,662.37 = 17,488.26/x
3. Step 3: Cross multiply
   30,919.92x = 42,662.37 × 17,488.26
4. Step 4: Simplify right side
   30,919.92x = 746,090,618.78
5. Step 5: Solve for x
   x = 746,090,618.78/30,919.92
6. Step 6: Final answer
   x = 24,129.77