Finding the Fourth Proportional to 8,093.94, 12,138.21 and 3,162.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,093.94 : 12,138.21 = 3,162.30 : x
2. Step 2: Convert to fraction form
   8,093.94/12,138.21 = 3,162.30/x
3. Step 3: Cross multiply
   8,093.94x = 12,138.21 × 3,162.30
4. Step 4: Simplify right side
   8,093.94x = 38,384,661.48
5. Step 5: Solve for x
   x = 38,384,661.48/8,093.94
6. Step 6: Final answer
   x = 4,742.40