Finding the Fourth Proportional to 30,771.57, 42,464.78 and 16,624.41

Step by Step Solution

1. Step 1: Write the proportion equation
   30,771.57 : 42,464.78 = 16,624.41 : x
2. Step 2: Convert to fraction form
   30,771.57/42,464.78 = 16,624.41/x
3. Step 3: Cross multiply
   30,771.57x = 42,464.78 × 16,624.41
4. Step 4: Simplify right side
   30,771.57x = 705,951,913.28
5. Step 5: Solve for x
   x = 705,951,913.28/30,771.57
6. Step 6: Final answer
   x = 22,941.69