Finding the Fourth Proportional to 6,112.10, 8,429.50 and 4,120.04

Step by Step Solution

1. Step 1: Write the proportion equation
   6,112.10 : 8,429.50 = 4,120.04 : x
2. Step 2: Convert to fraction form
   6,112.10/8,429.50 = 4,120.04/x
3. Step 3: Cross multiply
   6,112.10x = 8,429.50 × 4,120.04
4. Step 4: Simplify right side
   6,112.10x = 34,729,903.40
5. Step 5: Solve for x
   x = 34,729,903.40/6,112.10
6. Step 6: Final answer
   x = 5,682.15