Finding the Fourth Proportional to 30,776.82, 42,472.04 and 16,629.70

Step by Step Solution

1. Step 1: Write the proportion equation
   30,776.82 : 42,472.04 = 16,629.70 : x
2. Step 2: Convert to fraction form
   30,776.82/42,472.04 = 16,629.70/x
3. Step 3: Cross multiply
   30,776.82x = 42,472.04 × 16,629.70
4. Step 4: Simplify right side
   30,776.82x = 706,297,283.59
5. Step 5: Solve for x
   x = 706,297,283.59/30,776.82
6. Step 6: Final answer
   x = 22,949.00