Finding the Fourth Proportional to 13,481.50, 18,604.48 and 7,513.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,481.50 : 18,604.48 = 7,513.03 : x
2. Step 2: Convert to fraction form
   13,481.50/18,604.48 = 7,513.03/x
3. Step 3: Cross multiply
   13,481.50x = 18,604.48 × 7,513.03
4. Step 4: Simplify right side
   13,481.50x = 139,776,016.37
5. Step 5: Solve for x
   x = 139,776,016.37/13,481.50
6. Step 6: Final answer
   x = 10,367.99