Finding the Fourth Proportional to 30,769.50, 42,461.91 and 16,622.35

Step by Step Solution

1. Step 1: Write the proportion equation
   30,769.50 : 42,461.91 = 16,622.35 : x
2. Step 2: Convert to fraction form
   30,769.50/42,461.91 = 16,622.35/x
3. Step 3: Cross multiply
   30,769.50x = 42,461.91 × 16,622.35
4. Step 4: Simplify right side
   30,769.50x = 705,816,729.69
5. Step 5: Solve for x
   x = 705,816,729.69/30,769.50
6. Step 6: Final answer
   x = 22,938.84