Finding the Fourth Proportional to 13,145.09, 18,140.00 and 7,176.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,145.09 : 18,140.00 = 7,176.62 : x
2. Step 2: Convert to fraction form
   13,145.09/18,140.00 = 7,176.62/x
3. Step 3: Cross multiply
   13,145.09x = 18,140.00 × 7,176.62
4. Step 4: Simplify right side
   13,145.09x = 130,183,896.27
5. Step 5: Solve for x
   x = 130,183,896.27/13,145.09
6. Step 6: Final answer
   x = 9,903.62