Finding the Fourth Proportional to 30,919.43, 42,668.82 and 17,490.41

Step by Step Solution

1. Step 1: Write the proportion equation
   30,919.43 : 42,668.82 = 17,490.41 : x
2. Step 2: Convert to fraction form
   30,919.43/42,668.82 = 17,490.41/x
3. Step 3: Cross multiply
   30,919.43x = 42,668.82 × 17,490.41
4. Step 4: Simplify right side
   30,919.43x = 746,295,156.02
5. Step 5: Solve for x
   x = 746,295,156.02/30,919.43
6. Step 6: Final answer
   x = 24,136.77