Finding the Fourth Proportional to 22,226.48, 30,669.60 and 12,667.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,226.48 : 30,669.60 = 12,667.60 : x
2. Step 2: Convert to fraction form
   22,226.48/30,669.60 = 12,667.60/x
3. Step 3: Cross multiply
   22,226.48x = 30,669.60 × 12,667.60
4. Step 4: Simplify right side
   22,226.48x = 388,510,224.96
5. Step 5: Solve for x
   x = 388,510,224.96/22,226.48
6. Step 6: Final answer
   x = 17,479.61