Finding the Fourth Proportional to 5,385.96, 8,086.62 and 4,095.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,385.96 : 8,086.62 = 4,095.72 : x
2. Step 2: Convert to fraction form
   5,385.96/8,086.62 = 4,095.72/x
3. Step 3: Cross multiply
   5,385.96x = 8,086.62 × 4,095.72
4. Step 4: Simplify right side
   5,385.96x = 33,120,531.27
5. Step 5: Solve for x
   x = 33,120,531.27/5,385.96
6. Step 6: Final answer
   x = 6,149.42