Finding the Fourth Proportional to 16,742.97, 23,105.88 and 9,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   16,742.97 : 23,105.88 = 9,189.50 : x
2. Step 2: Convert to fraction form
   16,742.97/23,105.88 = 9,189.50/x
3. Step 3: Cross multiply
   16,742.97x = 23,105.88 × 9,189.50
4. Step 4: Simplify right side
   16,742.97x = 212,331,524.55
5. Step 5: Solve for x
   x = 212,331,524.55/16,742.97
6. Step 6: Final answer
   x = 12,681.83