Finding the Fourth Proportional to 19,022.86, 28,544.24 and 7,786.54

Step by Step Solution

1. Step 1: Write the proportion equation
   19,022.86 : 28,544.24 = 7,786.54 : x
2. Step 2: Convert to fraction form
   19,022.86/28,544.24 = 7,786.54/x
3. Step 3: Cross multiply
   19,022.86x = 28,544.24 × 7,786.54
4. Step 4: Simplify right side
   19,022.86x = 222,260,866.53
5. Step 5: Solve for x
   x = 222,260,866.53/19,022.86
6. Step 6: Final answer
   x = 11,683.88