Finding the Fourth Proportional to 3,147.03, 4,680.60 and 3,081.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,147.03 : 4,680.60 = 3,081.42 : x
2. Step 2: Convert to fraction form
   3,147.03/4,680.60 = 3,081.42/x
3. Step 3: Cross multiply
   3,147.03x = 4,680.60 × 3,081.42
4. Step 4: Simplify right side
   3,147.03x = 14,422,894.45
5. Step 5: Solve for x
   x = 14,422,894.45/3,147.03
6. Step 6: Final answer
   x = 4,583.02