Finding the Fourth Proportional to 30,471.30, 42,049.11 and 17,724.51

Step by Step Solution

1. Step 1: Write the proportion equation
   30,471.30 : 42,049.11 = 17,724.51 : x
2. Step 2: Convert to fraction form
   30,471.30/42,049.11 = 17,724.51/x
3. Step 3: Cross multiply
   30,471.30x = 42,049.11 × 17,724.51
4. Step 4: Simplify right side
   30,471.30x = 745,299,870.69
5. Step 5: Solve for x
   x = 745,299,870.69/30,471.30
6. Step 6: Final answer
   x = 24,459.08