Finding the Fourth Proportional to 5,227.73, 7,214.42 and 2,870.02

Step by Step Solution

1. Step 1: Write the proportion equation
   5,227.73 : 7,214.42 = 2,870.02 : x
2. Step 2: Convert to fraction form
   5,227.73/7,214.42 = 2,870.02/x
3. Step 3: Cross multiply
   5,227.73x = 7,214.42 × 2,870.02
4. Step 4: Simplify right side
   5,227.73x = 20,705,529.69
5. Step 5: Solve for x
   x = 20,705,529.69/5,227.73
6. Step 6: Final answer
   x = 3,960.71