Finding the Fourth Proportional to 18,401.76, 25,395 and 13,033.83

Step by Step Solution

1. Step 1: Write the proportion equation
   18,401.76 : 25,395 = 13,033.83 : x
2. Step 2: Convert to fraction form
   18,401.76/25,395 = 13,033.83/x
3. Step 3: Cross multiply
   18,401.76x = 25,395 × 13,033.83
4. Step 4: Simplify right side
   18,401.76x = 330,994,112.85
5. Step 5: Solve for x
   x = 330,994,112.85/18,401.76
6. Step 6: Final answer
   x = 17,987.09