Finding the Fourth Proportional to 30,874.27, 42,608.45 and 18,935.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,874.27 : 42,608.45 = 18,935.98 : x
2. Step 2: Convert to fraction form
   30,874.27/42,608.45 = 18,935.98/x
3. Step 3: Cross multiply
   30,874.27x = 42,608.45 × 18,935.98
4. Step 4: Simplify right side
   30,874.27x = 806,832,757.03
5. Step 5: Solve for x
   x = 806,832,757.03/30,874.27
6. Step 6: Final answer
   x = 26,132.85