Finding the Fourth Proportional to 8,156.48, 12,233.39 and 2,311.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,156.48 : 12,233.39 = 2,311.72 : x
2. Step 2: Convert to fraction form
   8,156.48/12,233.39 = 2,311.72/x
3. Step 3: Cross multiply
   8,156.48x = 12,233.39 × 2,311.72
4. Step 4: Simplify right side
   8,156.48x = 28,280,099.61
5. Step 5: Solve for x
   x = 28,280,099.61/8,156.48
6. Step 6: Final answer
   x = 3,467.19