Finding the Fourth Proportional to 16,219.67, 22,383.15 and 9,146.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,219.67 : 22,383.15 = 9,146.10 : x
2. Step 2: Convert to fraction form
   16,219.67/22,383.15 = 9,146.10/x
3. Step 3: Cross multiply
   16,219.67x = 22,383.15 × 9,146.10
4. Step 4: Simplify right side
   16,219.67x = 204,718,506.55
5. Step 5: Solve for x
   x = 204,718,506.55/16,219.67
6. Step 6: Final answer
   x = 12,621.62