Finding the Fourth Proportional to 8,173.82, 12,258.20 and 4,276.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,173.82 : 12,258.20 = 4,276.10 : x
2. Step 2: Convert to fraction form
   8,173.82/12,258.20 = 4,276.10/x
3. Step 3: Cross multiply
   8,173.82x = 12,258.20 × 4,276.10
4. Step 4: Simplify right side
   8,173.82x = 52,417,289.02
5. Step 5: Solve for x
   x = 52,417,289.02/8,173.82
6. Step 6: Final answer
   x = 6,412.83