Finding the Fourth Proportional to 22,195.69, 30,628.88 and 12,123.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,195.69 : 30,628.88 = 12,123.99 : x
2. Step 2: Convert to fraction form
   22,195.69/30,628.88 = 12,123.99/x
3. Step 3: Cross multiply
   22,195.69x = 30,628.88 × 12,123.99
4. Step 4: Simplify right side
   22,195.69x = 371,344,150.28
5. Step 5: Solve for x
   x = 371,344,150.28/22,195.69
6. Step 6: Final answer
   x = 16,730.46