Finding the Fourth Proportional to 23,185.90, 31,996.79 and 13,114.45

Step by Step Solution

1. Step 1: Write the proportion equation
   23,185.90 : 31,996.79 = 13,114.45 : x
2. Step 2: Convert to fraction form
   23,185.90/31,996.79 = 13,114.45/x
3. Step 3: Cross multiply
   23,185.90x = 31,996.79 × 13,114.45
4. Step 4: Simplify right side
   23,185.90x = 419,620,302.62
5. Step 5: Solve for x
   x = 419,620,302.62/23,185.90
6. Step 6: Final answer
   x = 18,098.08