Finding the Fourth Proportional to 22,200.26, 30,635.13 and 12,768.98

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.26 : 30,635.13 = 12,768.98 : x
2. Step 2: Convert to fraction form
   22,200.26/30,635.13 = 12,768.98/x
3. Step 3: Cross multiply
   22,200.26x = 30,635.13 × 12,768.98
4. Step 4: Simplify right side
   22,200.26x = 391,179,362.27
5. Step 5: Solve for x
   x = 391,179,362.27/22,200.26
6. Step 6: Final answer
   x = 17,620.49