Finding the Fourth Proportional to 17,199.09, 23,735.71 and 12,942.49

Step by Step Solution

1. Step 1: Write the proportion equation
   17,199.09 : 23,735.71 = 12,942.49 : x
2. Step 2: Convert to fraction form
   17,199.09/23,735.71 = 12,942.49/x
3. Step 3: Cross multiply
   17,199.09x = 23,735.71 × 12,942.49
4. Step 4: Simplify right side
   17,199.09x = 307,199,189.32
5. Step 5: Solve for x
   x = 307,199,189.32/17,199.09
6. Step 6: Final answer
   x = 17,861.36