Finding the Fourth Proportional to 12,066.98, 18,069.12 and 8,330.31

Step by Step Solution

1. Step 1: Write the proportion equation
   12,066.98 : 18,069.12 = 8,330.31 : x
2. Step 2: Convert to fraction form
   12,066.98/18,069.12 = 8,330.31/x
3. Step 3: Cross multiply
   12,066.98x = 18,069.12 × 8,330.31
4. Step 4: Simplify right side
   12,066.98x = 150,521,371.03
5. Step 5: Solve for x
   x = 150,521,371.03/12,066.98
6. Step 6: Final answer
   x = 12,473.83