Finding the Fourth Proportional to 22,160.32, 30,581.60 and 12,224.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,160.32 : 30,581.60 = 12,224.32 : x
2. Step 2: Convert to fraction form
   22,160.32/30,581.60 = 12,224.32/x
3. Step 3: Cross multiply
   22,160.32x = 30,581.60 × 12,224.32
4. Step 4: Simplify right side
   22,160.32x = 373,839,264.51
5. Step 5: Solve for x
   x = 373,839,264.51/22,160.32
6. Step 6: Final answer
   x = 16,869.76