Finding the Fourth Proportional to 16,801.68, 23,186.88 and 12,105.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,801.68 : 23,186.88 = 12,105.84 : x
2. Step 2: Convert to fraction form
   16,801.68/23,186.88 = 12,105.84/x
3. Step 3: Cross multiply
   16,801.68x = 23,186.88 × 12,105.84
4. Step 4: Simplify right side
   16,801.68x = 280,696,659.38
5. Step 5: Solve for x
   x = 280,696,659.38/16,801.68
6. Step 6: Final answer
   x = 16,706.46