Finding the Fourth Proportional to 30,963.69, 42,729.71 and 16,816.41

Step by Step Solution

1. Step 1: Write the proportion equation
   30,963.69 : 42,729.71 = 16,816.41 : x
2. Step 2: Convert to fraction form
   30,963.69/42,729.71 = 16,816.41/x
3. Step 3: Cross multiply
   30,963.69x = 42,729.71 × 16,816.41
4. Step 4: Simplify right side
   30,963.69x = 718,560,238.46
5. Step 5: Solve for x
   x = 718,560,238.46/30,963.69
6. Step 6: Final answer
   x = 23,206.54