Finding the Fourth Proportional to 8,108.27, 12,157.53 and 3,172.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,108.27 : 12,157.53 = 3,172.03 : x
2. Step 2: Convert to fraction form
   8,108.27/12,157.53 = 3,172.03/x
3. Step 3: Cross multiply
   8,108.27x = 12,157.53 × 3,172.03
4. Step 4: Simplify right side
   8,108.27x = 38,564,049.89
5. Step 5: Solve for x
   x = 38,564,049.89/8,108.27
6. Step 6: Final answer
   x = 4,756.14