Finding the Fourth Proportional to 16,222.30, 22,386.78 and 8,770.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,222.30 : 22,386.78 = 8,770.30 : x
2. Step 2: Convert to fraction form
   16,222.30/22,386.78 = 8,770.30/x
3. Step 3: Cross multiply
   16,222.30x = 22,386.78 × 8,770.30
4. Step 4: Simplify right side
   16,222.30x = 196,338,776.63
5. Step 5: Solve for x
   x = 196,338,776.63/16,222.30
6. Step 6: Final answer
   x = 12,103.02