Finding the Fourth Proportional to 5,443.12, 7,511.52 and 3,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.12 : 7,511.52 = 3,086.04 : x
2. Step 2: Convert to fraction form
   5,443.12/7,511.52 = 3,086.04/x
3. Step 3: Cross multiply
   5,443.12x = 7,511.52 × 3,086.04
4. Step 4: Simplify right side
   5,443.12x = 23,180,851.18
5. Step 5: Solve for x
   x = 23,180,851.18/5,443.12
6. Step 6: Final answer
   x = 4,258.74