Finding the Fourth Proportional to 30,849.20, 42,574.41 and 17,423.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,849.20 : 42,574.41 = 17,423.72 : x
2. Step 2: Convert to fraction form
   30,849.20/42,574.41 = 17,423.72/x
3. Step 3: Cross multiply
   30,849.20x = 42,574.41 × 17,423.72
4. Step 4: Simplify right side
   30,849.20x = 741,804,599.01
5. Step 5: Solve for x
   x = 741,804,599.01/30,849.20
6. Step 6: Final answer
   x = 24,046.15