Finding the Fourth Proportional to 22,229.59, 30,680.63 and 12,803.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,229.59 : 30,680.63 = 12,803.62 : x
2. Step 2: Convert to fraction form
   22,229.59/30,680.63 = 12,803.62/x
3. Step 3: Cross multiply
   22,229.59x = 30,680.63 × 12,803.62
4. Step 4: Simplify right side
   22,229.59x = 392,823,127.88
5. Step 5: Solve for x
   x = 392,823,127.88/22,229.59
6. Step 6: Final answer
   x = 17,671.18