Finding the Fourth Proportional to 8,131.56, 12,194.46 and 3,201

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.56 : 12,194.46 = 3,201 : x
2. Step 2: Convert to fraction form
   8,131.56/12,194.46 = 3,201/x
3. Step 3: Cross multiply
   8,131.56x = 12,194.46 × 3,201
4. Step 4: Simplify right side
   8,131.56x = 39,034,466.46
5. Step 5: Solve for x
   x = 39,034,466.46/8,131.56
6. Step 6: Final answer
   x = 4,800.37