Finding the Fourth Proportional to 22,260.72, 33,404.04 and 8,410.80

Step by Step Solution

1. Step 1: Write the proportion equation
   22,260.72 : 33,404.04 = 8,410.80 : x
2. Step 2: Convert to fraction form
   22,260.72/33,404.04 = 8,410.80/x
3. Step 3: Cross multiply
   22,260.72x = 33,404.04 × 8,410.80
4. Step 4: Simplify right side
   22,260.72x = 280,954,699.63
5. Step 5: Solve for x
   x = 280,954,699.63/22,260.72
6. Step 6: Final answer
   x = 12,621.10