Finding the Fourth Proportional to 8,429.54, 12,638.06 and 4,042.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.54 : 12,638.06 = 4,042.82 : x
2. Step 2: Convert to fraction form
   8,429.54/12,638.06 = 4,042.82/x
3. Step 3: Cross multiply
   8,429.54x = 12,638.06 × 4,042.82
4. Step 4: Simplify right side
   8,429.54x = 51,093,348.65
5. Step 5: Solve for x
   x = 51,093,348.65/8,429.54
6. Step 6: Final answer
   x = 6,061.23