Finding the Fourth Proportional to 5,155.49, 7,114.72 and 2,797.64

Step by Step Solution

1. Step 1: Write the proportion equation
   5,155.49 : 7,114.72 = 2,797.64 : x
2. Step 2: Convert to fraction form
   5,155.49/7,114.72 = 2,797.64/x
3. Step 3: Cross multiply
   5,155.49x = 7,114.72 × 2,797.64
4. Step 4: Simplify right side
   5,155.49x = 19,904,382.69
5. Step 5: Solve for x
   x = 19,904,382.69/5,155.49
6. Step 6: Final answer
   x = 3,860.81