Finding the Fourth Proportional to 8,322.72, 12,474.72 and 4,156.44

Step by Step Solution

1. Step 1: Write the proportion equation
   8,322.72 : 12,474.72 = 4,156.44 : x
2. Step 2: Convert to fraction form
   8,322.72/12,474.72 = 4,156.44/x
3. Step 3: Cross multiply
   8,322.72x = 12,474.72 × 4,156.44
4. Step 4: Simplify right side
   8,322.72x = 51,850,425.20
5. Step 5: Solve for x
   x = 51,850,425.20/8,322.72
6. Step 6: Final answer
   x = 6,229.99