Finding the Fourth Proportional to 22,622.44, 31,219 and 12,550.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,622.44 : 31,219 = 12,550.88 : x
2. Step 2: Convert to fraction form
   22,622.44/31,219 = 12,550.88/x
3. Step 3: Cross multiply
   22,622.44x = 31,219 × 12,550.88
4. Step 4: Simplify right side
   22,622.44x = 391,825,922.72
5. Step 5: Solve for x
   x = 391,825,922.72/22,622.44
6. Step 6: Final answer
   x = 17,320.23