Finding the Fourth Proportional to 12,196.84, 16,767.02 and 10,489.09

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196.84 : 16,767.02 = 10,489.09 : x
2. Step 2: Convert to fraction form
   12,196.84/16,767.02 = 10,489.09/x
3. Step 3: Cross multiply
   12,196.84x = 16,767.02 × 10,489.09
4. Step 4: Simplify right side
   12,196.84x = 175,870,781.81
5. Step 5: Solve for x
   x = 175,870,781.81/12,196.84
6. Step 6: Final answer
   x = 14,419.37