Finding the Fourth Proportional to 13,327.50, 18,391.82 and 7,359.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,327.50 : 18,391.82 = 7,359.03 : x
2. Step 2: Convert to fraction form
   13,327.50/18,391.82 = 7,359.03/x
3. Step 3: Cross multiply
   13,327.50x = 18,391.82 × 7,359.03
4. Step 4: Simplify right side
   13,327.50x = 135,345,918.34
5. Step 5: Solve for x
   x = 135,345,918.34/13,327.50
6. Step 6: Final answer
   x = 10,155.39