Finding the Fourth Proportional to 30,856.32, 42,581.79 and 16,709.22

Step by Step Solution

1. Step 1: Write the proportion equation
   30,856.32 : 42,581.79 = 16,709.22 : x
2. Step 2: Convert to fraction form
   30,856.32/42,581.79 = 16,709.22/x
3. Step 3: Cross multiply
   30,856.32x = 42,581.79 × 16,709.22
4. Step 4: Simplify right side
   30,856.32x = 711,508,497.10
5. Step 5: Solve for x
   x = 711,508,497.10/30,856.32
6. Step 6: Final answer
   x = 23,058.76