Finding the Fourth Proportional to 5,443.61, 7,512.03 and 3,085.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,443.61 : 7,512.03 = 3,085.74 : x
2. Step 2: Convert to fraction form
   5,443.61/7,512.03 = 3,085.74/x
3. Step 3: Cross multiply
   5,443.61x = 7,512.03 × 3,085.74
4. Step 4: Simplify right side
   5,443.61x = 23,180,171.45
5. Step 5: Solve for x
   x = 23,180,171.45/5,443.61
6. Step 6: Final answer
   x = 4,258.24