Finding the Fourth Proportional to 16,196.79, 22,352.49 and 9,123.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,196.79 : 22,352.49 = 9,123.69 : x
2. Step 2: Convert to fraction form
   16,196.79/22,352.49 = 9,123.69/x
3. Step 3: Cross multiply
   16,196.79x = 22,352.49 × 9,123.69
4. Step 4: Simplify right side
   16,196.79x = 203,937,189.49
5. Step 5: Solve for x
   x = 203,937,189.49/16,196.79
6. Step 6: Final answer
   x = 12,591.21