Finding the Fourth Proportional to 8,131.94, 12,188.49 and 3,740.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.94 : 12,188.49 = 3,740.18 : x
2. Step 2: Convert to fraction form
   8,131.94/12,188.49 = 3,740.18/x
3. Step 3: Cross multiply
   8,131.94x = 12,188.49 × 3,740.18
4. Step 4: Simplify right side
   8,131.94x = 45,587,085.59
5. Step 5: Solve for x
   x = 45,587,085.59/8,131.94
6. Step 6: Final answer
   x = 5,605.93