Finding the Fourth Proportional to 16,222.71, 22,385.67 and 11,976.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.71 : 22,385.67 = 11,976.03 : x
2. Step 2: Convert to fraction form
   16,222.71/22,385.67 = 11,976.03/x
3. Step 3: Cross multiply
   16,222.71x = 22,385.67 × 11,976.03
4. Step 4: Simplify right side
   16,222.71x = 268,091,455.49
5. Step 5: Solve for x
   x = 268,091,455.49/16,222.71
6. Step 6: Final answer
   x = 16,525.69