Finding the Fourth Proportional to 23,169.10, 31,973 and 13,097.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,169.10 : 31,973 = 13,097.18 : x
2. Step 2: Convert to fraction form
   23,169.10/31,973 = 13,097.18/x
3. Step 3: Cross multiply
   23,169.10x = 31,973 × 13,097.18
4. Step 4: Simplify right side
   23,169.10x = 418,756,136.14
5. Step 5: Solve for x
   x = 418,756,136.14/23,169.10
6. Step 6: Final answer
   x = 18,073.91