Finding the Fourth Proportional to 22,297.60, 30,740.16 and 16,318.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,297.60 : 30,740.16 = 16,318.72 : x
2. Step 2: Convert to fraction form
   22,297.60/30,740.16 = 16,318.72/x
3. Step 3: Cross multiply
   22,297.60x = 30,740.16 × 16,318.72
4. Step 4: Simplify right side
   22,297.60x = 501,640,063.80
5. Step 5: Solve for x
   x = 501,640,063.80/22,297.60
6. Step 6: Final answer
   x = 22,497.49