Finding the Fourth Proportional to 5,727.06, 7,844.12 and 5,390.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,727.06 : 7,844.12 = 5,390.82 : x
2. Step 2: Convert to fraction form
   5,727.06/7,844.12 = 5,390.82/x
3. Step 3: Cross multiply
   5,727.06x = 7,844.12 × 5,390.82
4. Step 4: Simplify right side
   5,727.06x = 42,286,238.98
5. Step 5: Solve for x
   x = 42,286,238.98/5,727.06
6. Step 6: Final answer
   x = 7,383.59