Finding the Fourth Proportional to 30,856.24, 42,581.53 and 16,709.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,856.24 : 42,581.53 = 16,709.08 : x
2. Step 2: Convert to fraction form
   30,856.24/42,581.53 = 16,709.08/x
3. Step 3: Cross multiply
   30,856.24x = 42,581.53 × 16,709.08
4. Step 4: Simplify right side
   30,856.24x = 711,498,191.29
5. Step 5: Solve for x
   x = 711,498,191.29/30,856.24
6. Step 6: Final answer
   x = 23,058.49