Finding the Fourth Proportional to 5,142.98, 7,097.49 and 3,153.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,142.98 : 7,097.49 = 3,153.15 : x
2. Step 2: Convert to fraction form
   5,142.98/7,097.49 = 3,153.15/x
3. Step 3: Cross multiply
   5,142.98x = 7,097.49 × 3,153.15
4. Step 4: Simplify right side
   5,142.98x = 22,379,450.59
5. Step 5: Solve for x
   x = 22,379,450.59/5,142.98
6. Step 6: Final answer
   x = 4,351.46