Finding the Fourth Proportional to 22,055.16, 33,087.24 and 12,819

Step by Step Solution

1. Step 1: Write the proportion equation
   22,055.16 : 33,087.24 = 12,819 : x
2. Step 2: Convert to fraction form
   22,055.16/33,087.24 = 12,819/x
3. Step 3: Cross multiply
   22,055.16x = 33,087.24 × 12,819
4. Step 4: Simplify right side
   22,055.16x = 424,145,329.56
5. Step 5: Solve for x
   x = 424,145,329.56/22,055.16
6. Step 6: Final answer
   x = 19,231.12