Finding the Fourth Proportional to 7,146.37, 10,722.12 and 3,197.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,146.37 : 10,722.12 = 3,197.31 : x
2. Step 2: Convert to fraction form
   7,146.37/10,722.12 = 3,197.31/x
3. Step 3: Cross multiply
   7,146.37x = 10,722.12 × 3,197.31
4. Step 4: Simplify right side
   7,146.37x = 34,281,941.50
5. Step 5: Solve for x
   x = 34,281,941.50/7,146.37
6. Step 6: Final answer
   x = 4,797.11