Finding the Fourth Proportional to 5,443.34, 7,511.16 and 3,085.40

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.34 : 7,511.16 = 3,085.40 : x
2. Step 2: Convert to fraction form
   5,443.34/7,511.16 = 3,085.40/x
3. Step 3: Cross multiply
   5,443.34x = 7,511.16 × 3,085.40
4. Step 4: Simplify right side
   5,443.34x = 23,174,933.06
5. Step 5: Solve for x
   x = 23,174,933.06/5,443.34
6. Step 6: Final answer
   x = 4,257.48