Finding the Fourth Proportional to 30,839, 42,557.82 and 16,691.96

Step by Step Solution

1. Step 1: Write the proportion equation
   30,839 : 42,557.82 = 16,691.96 : x
2. Step 2: Convert to fraction form
   30,839/42,557.82 = 16,691.96/x
3. Step 3: Cross multiply
   30,839x = 42,557.82 × 16,691.96
4. Step 4: Simplify right side
   30,839x = 710,373,429.13
5. Step 5: Solve for x
   x = 710,373,429.13/30,839
6. Step 6: Final answer
   x = 23,034.90