Finding the Fourth Proportional to 13,401.14, 18,481.47 and 8,365.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.14 : 18,481.47 = 8,365.83 : x
2. Step 2: Convert to fraction form
   13,401.14/18,481.47 = 8,365.83/x
3. Step 3: Cross multiply
   13,401.14x = 18,481.47 × 8,365.83
4. Step 4: Simplify right side
   13,401.14x = 154,612,782.55
5. Step 5: Solve for x
   x = 154,612,782.55/13,401.14
6. Step 6: Final answer
   x = 11,537.29