Finding the Fourth Proportional to 4,912.67, 7,339.12 and 3,143.53

Step by Step Solution

1. Step 1: Write the proportion equation
   4,912.67 : 7,339.12 = 3,143.53 : x
2. Step 2: Convert to fraction form
   4,912.67/7,339.12 = 3,143.53/x
3. Step 3: Cross multiply
   4,912.67x = 7,339.12 × 3,143.53
4. Step 4: Simplify right side
   4,912.67x = 23,070,743.89
5. Step 5: Solve for x
   x = 23,070,743.89/4,912.67
6. Step 6: Final answer
   x = 4,696.17