Finding the Fourth Proportional to 12,196.45, 16,817.75 and 7,939.66

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.45 : 16,817.75 = 7,939.66 : x
2. Step 2: Convert to fraction form
   12,196.45/16,817.75 = 7,939.66/x
3. Step 3: Cross multiply
   12,196.45x = 16,817.75 × 7,939.66
4. Step 4: Simplify right side
   12,196.45x = 133,527,251.39
5. Step 5: Solve for x
   x = 133,527,251.39/12,196.45
6. Step 6: Final answer
   x = 10,948.04