Finding the Fourth Proportional to 5,443.15, 7,511.28 and 3,085.33

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.15 : 7,511.28 = 3,085.33 : x
2. Step 2: Convert to fraction form
   5,443.15/7,511.28 = 3,085.33/x
3. Step 3: Cross multiply
   5,443.15x = 7,511.28 × 3,085.33
4. Step 4: Simplify right side
   5,443.15x = 23,174,777.52
5. Step 5: Solve for x
   x = 23,174,777.52/5,443.15
6. Step 6: Final answer
   x = 4,257.60