Finding the Fourth Proportional to 5,178.72, 7,141.12 and 3,850.24

Step by Step Solution

1. Step 1: Write the proportion equation
   5,178.72 : 7,141.12 = 3,850.24 : x
2. Step 2: Convert to fraction form
   5,178.72/7,141.12 = 3,850.24/x
3. Step 3: Cross multiply
   5,178.72x = 7,141.12 × 3,850.24
4. Step 4: Simplify right side
   5,178.72x = 27,495,025.87
5. Step 5: Solve for x
   x = 27,495,025.87/5,178.72
6. Step 6: Final answer
   x = 5,309.23