Finding the Fourth Proportional to 8,131.68, 12,193.20 and 5,535.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.68 : 12,193.20 = 5,535.36 : x
2. Step 2: Convert to fraction form
   8,131.68/12,193.20 = 5,535.36/x
3. Step 3: Cross multiply
   8,131.68x = 12,193.20 × 5,535.36
4. Step 4: Simplify right side
   8,131.68x = 67,493,751.55
5. Step 5: Solve for x
   x = 67,493,751.55/8,131.68
6. Step 6: Final answer
   x = 8,300.10