Finding the Fourth Proportional to 6,231.72, 8,601.06 and 3,875.40

Step by Step Solution

1. Step 1: Write the proportion equation
   6,231.72 : 8,601.06 = 3,875.40 : x
2. Step 2: Convert to fraction form
   6,231.72/8,601.06 = 3,875.40/x
3. Step 3: Cross multiply
   6,231.72x = 8,601.06 × 3,875.40
4. Step 4: Simplify right side
   6,231.72x = 33,332,547.92
5. Step 5: Solve for x
   x = 33,332,547.92/6,231.72
6. Step 6: Final answer
   x = 5,348.85