Finding the Fourth Proportional to 30,764.72, 42,455.33 and 16,617.56

Step by Step Solution

1. Step 1: Write the proportion equation
   30,764.72 : 42,455.33 = 16,617.56 : x
2. Step 2: Convert to fraction form
   30,764.72/42,455.33 = 16,617.56/x
3. Step 3: Cross multiply
   30,764.72x = 42,455.33 × 16,617.56
4. Step 4: Simplify right side
   30,764.72x = 705,504,078.96
5. Step 5: Solve for x
   x = 705,504,078.96/30,764.72
6. Step 6: Final answer
   x = 22,932.25