Finding the Fourth Proportional to 5,196.53, 7,171.23 and 2,838.71

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.53 : 7,171.23 = 2,838.71 : x
2. Step 2: Convert to fraction form
   5,196.53/7,171.23 = 2,838.71/x
3. Step 3: Cross multiply
   5,196.53x = 7,171.23 × 2,838.71
4. Step 4: Simplify right side
   5,196.53x = 20,357,006.46
5. Step 5: Solve for x
   x = 20,357,006.46/5,196.53
6. Step 6: Final answer
   x = 3,917.43