Finding the Fourth Proportional to 10,185.27, 15,280.34 and 3,945.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,185.27 : 15,280.34 = 3,945.44 : x
2. Step 2: Convert to fraction form
   10,185.27/15,280.34 = 3,945.44/x
3. Step 3: Cross multiply
   10,185.27x = 15,280.34 × 3,945.44
4. Step 4: Simplify right side
   10,185.27x = 60,287,568.52
5. Step 5: Solve for x
   x = 60,287,568.52/10,185.27
6. Step 6: Final answer
   x = 5,919.09