Finding the Fourth Proportional to 8,494.92, 12,738.42 and 3,230.91

Step by Step Solution

1. Step 1: Write the proportion equation
   8,494.92 : 12,738.42 = 3,230.91 : x
2. Step 2: Convert to fraction form
   8,494.92/12,738.42 = 3,230.91/x
3. Step 3: Cross multiply
   8,494.92x = 12,738.42 × 3,230.91
4. Step 4: Simplify right side
   8,494.92x = 41,156,688.56
5. Step 5: Solve for x
   x = 41,156,688.56/8,494.92
6. Step 6: Final answer
   x = 4,844.86