Finding the Fourth Proportional to 12,192.09, 18,280.24 and 8,019.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,192.09 : 18,280.24 = 8,019.46 : x
2. Step 2: Convert to fraction form
   12,192.09/18,280.24 = 8,019.46/x
3. Step 3: Cross multiply
   12,192.09x = 18,280.24 × 8,019.46
4. Step 4: Simplify right side
   12,192.09x = 146,597,653.47
5. Step 5: Solve for x
   x = 146,597,653.47/12,192.09
6. Step 6: Final answer
   x = 12,024.00