Finding the Fourth Proportional to 13,269.20, 18,310.83 and 7,300.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,269.20 : 18,310.83 = 7,300.71 : x
2. Step 2: Convert to fraction form
   13,269.20/18,310.83 = 7,300.71/x
3. Step 3: Cross multiply
   13,269.20x = 18,310.83 × 7,300.71
4. Step 4: Simplify right side
   13,269.20x = 133,682,059.69
5. Step 5: Solve for x
   x = 133,682,059.69/13,269.20
6. Step 6: Final answer
   x = 10,074.61