Finding the Fourth Proportional to 20,150.79, 30,222.81 and 5,359.92

Step by Step Solution

1. Step 1: Write the proportion equation
   20,150.79 : 30,222.81 = 5,359.92 : x
2. Step 2: Convert to fraction form
   20,150.79/30,222.81 = 5,359.92/x
3. Step 3: Cross multiply
   20,150.79x = 30,222.81 × 5,359.92
4. Step 4: Simplify right side
   20,150.79x = 161,991,843.78
5. Step 5: Solve for x
   x = 161,991,843.78/20,150.79
6. Step 6: Final answer
   x = 8,038.98