Finding the Fourth Proportional to 22,621.83, 31,218.16 and 12,550.27

Step by Step Solution

1. Step 1: Write the proportion equation
   22,621.83 : 31,218.16 = 12,550.27 : x
2. Step 2: Convert to fraction form
   22,621.83/31,218.16 = 12,550.27/x
3. Step 3: Cross multiply
   22,621.83x = 31,218.16 × 12,550.27
4. Step 4: Simplify right side
   22,621.83x = 391,796,336.90
5. Step 5: Solve for x
   x = 391,796,336.90/22,621.83
6. Step 6: Final answer
   x = 17,319.39