Finding the Fourth Proportional to 8,074.46, 12,109.32 and 3,142.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,074.46 : 12,109.32 = 3,142.92 : x
2. Step 2: Convert to fraction form
   8,074.46/12,109.32 = 3,142.92/x
3. Step 3: Cross multiply
   8,074.46x = 12,109.32 × 3,142.92
4. Step 4: Simplify right side
   8,074.46x = 38,058,624.01
5. Step 5: Solve for x
   x = 38,058,624.01/8,074.46
6. Step 6: Final answer
   x = 4,713.46