Finding the Fourth Proportional to 8,143.38, 12,205.29 and 4,196.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,143.38 : 12,205.29 = 4,196.52 : x
2. Step 2: Convert to fraction form
   8,143.38/12,205.29 = 4,196.52/x
3. Step 3: Cross multiply
   8,143.38x = 12,205.29 × 4,196.52
4. Step 4: Simplify right side
   8,143.38x = 51,219,743.59
5. Step 5: Solve for x
   x = 51,219,743.59/8,143.38
6. Step 6: Final answer
   x = 6,289.74