Finding the Fourth Proportional to 8,130.50, 12,197.37 and 3,513.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,130.50 : 12,197.37 = 3,513.50 : x
2. Step 2: Convert to fraction form
   8,130.50/12,197.37 = 3,513.50/x
3. Step 3: Cross multiply
   8,130.50x = 12,197.37 × 3,513.50
4. Step 4: Simplify right side
   8,130.50x = 42,855,459.50
5. Step 5: Solve for x
   x = 42,855,459.50/8,130.50
6. Step 6: Final answer
   x = 5,270.95