Finding the Fourth Proportional to 30,856.01, 42,581.32 and 16,708.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,856.01 : 42,581.32 = 16,708.82 : x
2. Step 2: Convert to fraction form
   30,856.01/42,581.32 = 16,708.82/x
3. Step 3: Cross multiply
   30,856.01x = 42,581.32 × 16,708.82
4. Step 4: Simplify right side
   30,856.01x = 711,483,356.56
5. Step 5: Solve for x
   x = 711,483,356.56/30,856.01
6. Step 6: Final answer
   x = 23,058.18