Finding the Fourth Proportional to 23,007.05, 31,747.54 and 13,449.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,007.05 : 31,747.54 = 13,449.18 : x
2. Step 2: Convert to fraction form
   23,007.05/31,747.54 = 13,449.18/x
3. Step 3: Cross multiply
   23,007.05x = 31,747.54 × 13,449.18
4. Step 4: Simplify right side
   23,007.05x = 426,978,187.66
5. Step 5: Solve for x
   x = 426,978,187.66/23,007.05
6. Step 6: Final answer
   x = 18,558.58