Finding the Fourth Proportional to 7,150.17, 10,728.35 and 3,865.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,150.17 : 10,728.35 = 3,865.59 : x
2. Step 2: Convert to fraction form
   7,150.17/10,728.35 = 3,865.59/x
3. Step 3: Cross multiply
   7,150.17x = 10,728.35 × 3,865.59
4. Step 4: Simplify right side
   7,150.17x = 41,471,397.64
5. Step 5: Solve for x
   x = 41,471,397.64/7,150.17
6. Step 6: Final answer
   x = 5,800.05