Finding the Fourth Proportional to 5,183.55, 7,151.72 and 2,945.43

Step by Step Solution

1. Step 1: Write the proportion equation
   5,183.55 : 7,151.72 = 2,945.43 : x
2. Step 2: Convert to fraction form
   5,183.55/7,151.72 = 2,945.43/x
3. Step 3: Cross multiply
   5,183.55x = 7,151.72 × 2,945.43
4. Step 4: Simplify right side
   5,183.55x = 21,064,875.91
5. Step 5: Solve for x
   x = 21,064,875.91/5,183.55
6. Step 6: Final answer
   x = 4,063.79