Finding the Fourth Proportional to 22,355.71, 30,850.79 and 12,795.55

Step by Step Solution

1. Step 1: Write the proportion equation
   22,355.71 : 30,850.79 = 12,795.55 : x
2. Step 2: Convert to fraction form
   22,355.71/30,850.79 = 12,795.55/x
3. Step 3: Cross multiply
   22,355.71x = 30,850.79 × 12,795.55
4. Step 4: Simplify right side
   22,355.71x = 394,752,684.88
5. Step 5: Solve for x
   x = 394,752,684.88/22,355.71
6. Step 6: Final answer
   x = 17,657.80