Finding the Fourth Proportional to 22,152.96, 30,570.24 and 12,216.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,152.96 : 30,570.24 = 12,216.96 : x
2. Step 2: Convert to fraction form
   22,152.96/30,570.24 = 12,216.96/x
3. Step 3: Cross multiply
   22,152.96x = 30,570.24 × 12,216.96
4. Step 4: Simplify right side
   22,152.96x = 373,475,399.27
5. Step 5: Solve for x
   x = 373,475,399.27/22,152.96
6. Step 6: Final answer
   x = 16,858.94