Finding the Fourth Proportional to 8,185.42, 12,276.86 and 4,489.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,185.42 : 12,276.86 = 4,489.48 : x
2. Step 2: Convert to fraction form
   8,185.42/12,276.86 = 4,489.48/x
3. Step 3: Cross multiply
   8,185.42x = 12,276.86 × 4,489.48
4. Step 4: Simplify right side
   8,185.42x = 55,116,717.43
5. Step 5: Solve for x
   x = 55,116,717.43/8,185.42
6. Step 6: Final answer
   x = 6,733.52