Finding the Fourth Proportional to 8,131.61, 12,197.24 and 3,749.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,131.61 : 12,197.24 = 3,749.06 : x
2. Step 2: Convert to fraction form
   8,131.61/12,197.24 = 3,749.06/x
3. Step 3: Cross multiply
   8,131.61x = 12,197.24 × 3,749.06
4. Step 4: Simplify right side
   8,131.61x = 45,728,104.86
5. Step 5: Solve for x
   x = 45,728,104.86/8,131.61
6. Step 6: Final answer
   x = 5,623.50