Finding the Fourth Proportional to 6,120.46, 8,443.20 and 3,729.34

Step by Step Solution

1. Step 1: Write the proportion equation
   6,120.46 : 8,443.20 = 3,729.34 : x
2. Step 2: Convert to fraction form
   6,120.46/8,443.20 = 3,729.34/x
3. Step 3: Cross multiply
   6,120.46x = 8,443.20 × 3,729.34
4. Step 4: Simplify right side
   6,120.46x = 31,487,563.49
5. Step 5: Solve for x
   x = 31,487,563.49/6,120.46
6. Step 6: Final answer
   x = 5,144.64