Finding the Fourth Proportional to 19,573.16, 27,019.38 and 12,020.72

Step by Step Solution

1. Step 1: Write the proportion equation
   19,573.16 : 27,019.38 = 12,020.72 : x
2. Step 2: Convert to fraction form
   19,573.16/27,019.38 = 12,020.72/x
3. Step 3: Cross multiply
   19,573.16x = 27,019.38 × 12,020.72
4. Step 4: Simplify right side
   19,573.16x = 324,792,401.55
5. Step 5: Solve for x
   x = 324,792,401.55/19,573.16
6. Step 6: Final answer
   x = 16,593.76