Finding the Fourth Proportional to 22,194.72, 30,628.02 and 12,123

Step by Step Solution

1. Step 1: Write the proportion equation
   22,194.72 : 30,628.02 = 12,123 : x
2. Step 2: Convert to fraction form
   22,194.72/30,628.02 = 12,123/x
3. Step 3: Cross multiply
   22,194.72x = 30,628.02 × 12,123
4. Step 4: Simplify right side
   22,194.72x = 371,303,486.46
5. Step 5: Solve for x
   x = 371,303,486.46/22,194.72
6. Step 6: Final answer
   x = 16,729.36