Finding the Fourth Proportional to 23,991.43, 33,108.17 and 13,381.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,991.43 : 33,108.17 = 13,381.06 : x
2. Step 2: Convert to fraction form
   23,991.43/33,108.17 = 13,381.06/x
3. Step 3: Cross multiply
   23,991.43x = 33,108.17 × 13,381.06
4. Step 4: Simplify right side
   23,991.43x = 443,022,243.72
5. Step 5: Solve for x
   x = 443,022,243.72/23,991.43
6. Step 6: Final answer
   x = 18,465.86