Finding the Fourth Proportional to 10,131.85, 15,183.48 and 4,789.33

Step by Step Solution

1. Step 1: Write the proportion equation
   10,131.85 : 15,183.48 = 4,789.33 : x
2. Step 2: Convert to fraction form
   10,131.85/15,183.48 = 4,789.33/x
3. Step 3: Cross multiply
   10,131.85x = 15,183.48 × 4,789.33
4. Step 4: Simplify right side
   10,131.85x = 72,718,676.27
5. Step 5: Solve for x
   x = 72,718,676.27/10,131.85
6. Step 6: Final answer
   x = 7,177.23