Finding the Fourth Proportional to 22,299.39, 30,772.62 and 12,608.01

Step by Step Solution

1. Step 1: Write the proportion equation
   22,299.39 : 30,772.62 = 12,608.01 : x
2. Step 2: Convert to fraction form
   22,299.39/30,772.62 = 12,608.01/x
3. Step 3: Cross multiply
   22,299.39x = 30,772.62 × 12,608.01
4. Step 4: Simplify right side
   22,299.39x = 387,981,500.69
5. Step 5: Solve for x
   x = 387,981,500.69/22,299.39
6. Step 6: Final answer
   x = 17,398.75