Finding the Fourth Proportional to 23,168.49, 31,970.93 and 13,097.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.49 : 31,970.93 = 13,097.31 : x
2. Step 2: Convert to fraction form
   23,168.49/31,970.93 = 13,097.31/x
3. Step 3: Cross multiply
   23,168.49x = 31,970.93 × 13,097.31
4. Step 4: Simplify right side
   23,168.49x = 418,733,181.20
5. Step 5: Solve for x
   x = 418,733,181.20/23,168.49
6. Step 6: Final answer
   x = 18,073.39