Finding the Fourth Proportional to 9,022.47, 13,518.23 and 8,109.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,022.47 : 13,518.23 = 8,109.42 : x
2. Step 2: Convert to fraction form
   9,022.47/13,518.23 = 8,109.42/x
3. Step 3: Cross multiply
   9,022.47x = 13,518.23 × 8,109.42
4. Step 4: Simplify right side
   9,022.47x = 109,624,964.18
5. Step 5: Solve for x
   x = 109,624,964.18/9,022.47
6. Step 6: Final answer
   x = 12,150.22