Finding the Fourth Proportional to 22,155.96, 30,574.38 and 12,219.96

Step by Step Solution

1. Step 1: Write the proportion equation
   22,155.96 : 30,574.38 = 12,219.96 : x
2. Step 2: Convert to fraction form
   22,155.96/30,574.38 = 12,219.96/x
3. Step 3: Cross multiply
   22,155.96x = 30,574.38 × 12,219.96
4. Step 4: Simplify right side
   22,155.96x = 373,617,700.62
5. Step 5: Solve for x
   x = 373,617,700.62/22,155.96
6. Step 6: Final answer
   x = 16,863.08