Finding the Fourth Proportional to 6,112.29, 8,429.76 and 4,120.23

Step by Step Solution

1. Step 1: Write the proportion equation
   6,112.29 : 8,429.76 = 4,120.23 : x
2. Step 2: Convert to fraction form
   6,112.29/8,429.76 = 4,120.23/x
3. Step 3: Cross multiply
   6,112.29x = 8,429.76 × 4,120.23
4. Step 4: Simplify right side
   6,112.29x = 34,732,550.04
5. Step 5: Solve for x
   x = 34,732,550.04/6,112.29
6. Step 6: Final answer
   x = 5,682.41