Finding the Fourth Proportional to 22,144, 30,558.72 and 12,208

Step by Step Solution

1. Step 1: Write the proportion equation
   22,144 : 30,558.72 = 12,208 : x
2. Step 2: Convert to fraction form
   22,144/30,558.72 = 12,208/x
3. Step 3: Cross multiply
   22,144x = 30,558.72 × 12,208
4. Step 4: Simplify right side
   22,144x = 373,060,853.76
5. Step 5: Solve for x
   x = 373,060,853.76/22,144
6. Step 6: Final answer
   x = 16,847.04