Finding the Fourth Proportional to 5,196.42, 7,171.20 and 3,101.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,196.42 : 7,171.20 = 3,101.76 : x
2. Step 2: Convert to fraction form
   5,196.42/7,171.20 = 3,101.76/x
3. Step 3: Cross multiply
   5,196.42x = 7,171.20 × 3,101.76
4. Step 4: Simplify right side
   5,196.42x = 22,243,341.31
5. Step 5: Solve for x
   x = 22,243,341.31/5,196.42
6. Step 6: Final answer
   x = 4,280.51