Finding the Fourth Proportional to 23,918.79, 33,007.89 and 13,308.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,918.79 : 33,007.89 = 13,308.18 : x
2. Step 2: Convert to fraction form
   23,918.79/33,007.89 = 13,308.18/x
3. Step 3: Cross multiply
   23,918.79x = 33,007.89 × 13,308.18
4. Step 4: Simplify right side
   23,918.79x = 439,274,941.54
5. Step 5: Solve for x
   x = 439,274,941.54/23,918.79
6. Step 6: Final answer
   x = 18,365.27