Finding the Fourth Proportional to 5,906.32, 8,144.47 and 5,311.18

Step by Step Solution

1. Step 1: Write the proportion equation
   5,906.32 : 8,144.47 = 5,311.18 : x
2. Step 2: Convert to fraction form
   5,906.32/8,144.47 = 5,311.18/x
3. Step 3: Cross multiply
   5,906.32x = 8,144.47 × 5,311.18
4. Step 4: Simplify right side
   5,906.32x = 43,256,687.31
5. Step 5: Solve for x
   x = 43,256,687.31/5,906.32
6. Step 6: Final answer
   x = 7,323.79