Finding the Fourth Proportional to 13,137.48, 18,133.74 and 8,103.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,137.48 : 18,133.74 = 8,103.27 : x
2. Step 2: Convert to fraction form
   13,137.48/18,133.74 = 8,103.27/x
3. Step 3: Cross multiply
   13,137.48x = 18,133.74 × 8,103.27
4. Step 4: Simplify right side
   13,137.48x = 146,942,591.33
5. Step 5: Solve for x
   x = 146,942,591.33/13,137.48
6. Step 6: Final answer
   x = 11,184.99