Finding the Fourth Proportional to 5,196.55, 7,171.27 and 2,838.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.55 : 7,171.27 = 2,838.69 : x
2. Step 2: Convert to fraction form
   5,196.55/7,171.27 = 2,838.69/x
3. Step 3: Cross multiply
   5,196.55x = 7,171.27 × 2,838.69
4. Step 4: Simplify right side
   5,196.55x = 20,357,012.44
5. Step 5: Solve for x
   x = 20,357,012.44/5,196.55
6. Step 6: Final answer
   x = 3,917.41