Finding the Fourth Proportional to 8,168.76, 12,251.71 and 3,491.41

Step by Step Solution

1. Step 1: Write the proportion equation
   8,168.76 : 12,251.71 = 3,491.41 : x
2. Step 2: Convert to fraction form
   8,168.76/12,251.71 = 3,491.41/x
3. Step 3: Cross multiply
   8,168.76x = 12,251.71 × 3,491.41
4. Step 4: Simplify right side
   8,168.76x = 42,775,742.81
5. Step 5: Solve for x
   x = 42,775,742.81/8,168.76
6. Step 6: Final answer
   x = 5,236.50