Finding the Fourth Proportional to 30,856.58, 42,582.07 and 16,709.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,856.58 : 42,582.07 = 16,709.42 : x
2. Step 2: Convert to fraction form
   30,856.58/42,582.07 = 16,709.42/x
3. Step 3: Cross multiply
   30,856.58x = 42,582.07 × 16,709.42
4. Step 4: Simplify right side
   30,856.58x = 711,521,692.10
5. Step 5: Solve for x
   x = 711,521,692.10/30,856.58
6. Step 6: Final answer
   x = 23,058.99