Finding the Fourth Proportional to 30,904.75, 42,648.56 and 16,757.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,904.75 : 42,648.56 = 16,757.61 : x
2. Step 2: Convert to fraction form
   30,904.75/42,648.56 = 16,757.61/x
3. Step 3: Cross multiply
   30,904.75x = 42,648.56 × 16,757.61
4. Step 4: Simplify right side
   30,904.75x = 714,687,935.54
5. Step 5: Solve for x
   x = 714,687,935.54/30,904.75
6. Step 6: Final answer
   x = 23,125.50