Finding the Fourth Proportional to 22,002.88, 30,366.12 and 12,572.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,002.88 : 30,366.12 = 12,572.80 : x
2. Step 2: Convert to fraction form
   22,002.88/30,366.12 = 12,572.80/x
3. Step 3: Cross multiply
   22,002.88x = 30,366.12 × 12,572.80
4. Step 4: Simplify right side
   22,002.88x = 381,787,153.54
5. Step 5: Solve for x
   x = 381,787,153.54/22,002.88
6. Step 6: Final answer
   x = 17,351.69