Finding the Fourth Proportional to 5,323.10, 7,345.89 and 3,086.28

Step by Step Solution

1. Step 1: Write the proportion equation
   5,323.10 : 7,345.89 = 3,086.28 : x
2. Step 2: Convert to fraction form
   5,323.10/7,345.89 = 3,086.28/x
3. Step 3: Cross multiply
   5,323.10x = 7,345.89 × 3,086.28
4. Step 4: Simplify right side
   5,323.10x = 22,671,473.39
5. Step 5: Solve for x
   x = 22,671,473.39/5,323.10
6. Step 6: Final answer
   x = 4,259.07