Finding the Fourth Proportional to 13,311.48, 18,369.72 and 7,262.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,311.48 : 18,369.72 = 7,262.04 : x
2. Step 2: Convert to fraction form
   13,311.48/18,369.72 = 7,262.04/x
3. Step 3: Cross multiply
   13,311.48x = 18,369.72 × 7,262.04
4. Step 4: Simplify right side
   13,311.48x = 133,401,641.43
5. Step 5: Solve for x
   x = 133,401,641.43/13,311.48
6. Step 6: Final answer
   x = 10,021.55