Finding the Fourth Proportional to 5,196.42, 7,171.23 and 2,838.56

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.42 : 7,171.23 = 2,838.56 : x
2. Step 2: Convert to fraction form
   5,196.42/7,171.23 = 2,838.56/x
3. Step 3: Cross multiply
   5,196.42x = 7,171.23 × 2,838.56
4. Step 4: Simplify right side
   5,196.42x = 20,355,930.77
5. Step 5: Solve for x
   x = 20,355,930.77/5,196.42
6. Step 6: Final answer
   x = 3,917.30