Finding the Fourth Proportional to 30,857.16, 42,582.82 and 16,709.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,857.16 : 42,582.82 = 16,709.96 : x
2. Step 2: Convert to fraction form
   30,857.16/42,582.82 = 16,709.96/x
3. Step 3: Cross multiply
   30,857.16x = 42,582.82 × 16,709.96
4. Step 4: Simplify right side
   30,857.16x = 711,557,218.89
5. Step 5: Solve for x
   x = 711,557,218.89/30,857.16
6. Step 6: Final answer
   x = 23,059.71