Finding the Fourth Proportional to 22,200.01, 30,634.78 and 12,768.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,200.01 : 30,634.78 = 12,768.73 : x
2. Step 2: Convert to fraction form
   22,200.01/30,634.78 = 12,768.73/x
3. Step 3: Cross multiply
   22,200.01x = 30,634.78 × 12,768.73
4. Step 4: Simplify right side
   22,200.01x = 391,167,234.43
5. Step 5: Solve for x
   x = 391,167,234.43/22,200.01
6. Step 6: Final answer
   x = 17,620.14