Finding the Fourth Proportional to 8,171.43, 12,254.18 and 3,491.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,171.43 : 12,254.18 = 3,491.76 : x
2. Step 2: Convert to fraction form
   8,171.43/12,254.18 = 3,491.76/x
3. Step 3: Cross multiply
   8,171.43x = 12,254.18 × 3,491.76
4. Step 4: Simplify right side
   8,171.43x = 42,788,655.56
5. Step 5: Solve for x
   x = 42,788,655.56/8,171.43
6. Step 6: Final answer
   x = 5,236.37