Finding the Fourth Proportional to 30,969.57, 42,738.23 and 16,822.41

Step by Step Solution

1. Step 1: Write the proportion equation
   30,969.57 : 42,738.23 = 16,822.41 : x
2. Step 2: Convert to fraction form
   30,969.57/42,738.23 = 16,822.41/x
3. Step 3: Cross multiply
   30,969.57x = 42,738.23 × 16,822.41
4. Step 4: Simplify right side
   30,969.57x = 718,960,027.73
5. Step 5: Solve for x
   x = 718,960,027.73/30,969.57
6. Step 6: Final answer
   x = 23,215.05