Finding the Fourth Proportional to 6,385.24, 8,811.89 and 3,865.92

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.24 : 8,811.89 = 3,865.92 : x
2. Step 2: Convert to fraction form
   6,385.24/8,811.89 = 3,865.92/x
3. Step 3: Cross multiply
   6,385.24x = 8,811.89 × 3,865.92
4. Step 4: Simplify right side
   6,385.24x = 34,066,042.46
5. Step 5: Solve for x
   x = 34,066,042.46/6,385.24
6. Step 6: Final answer
   x = 5,335.12