Finding the Fourth Proportional to 8,131.68, 12,201.20 and 3,452.96

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.68 : 12,201.20 = 3,452.96 : x
2. Step 2: Convert to fraction form
   8,131.68/12,201.20 = 3,452.96/x
3. Step 3: Cross multiply
   8,131.68x = 12,201.20 × 3,452.96
4. Step 4: Simplify right side
   8,131.68x = 42,130,255.55
5. Step 5: Solve for x
   x = 42,130,255.55/8,131.68
6. Step 6: Final answer
   x = 5,181.00