Finding the Fourth Proportional to 6,429.78, 8,868.29 and 4,194.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.78 : 8,868.29 = 4,194.18 : x
2. Step 2: Convert to fraction form
   6,429.78/8,868.29 = 4,194.18/x
3. Step 3: Cross multiply
   6,429.78x = 8,868.29 × 4,194.18
4. Step 4: Simplify right side
   6,429.78x = 37,195,183.58
5. Step 5: Solve for x
   x = 37,195,183.58/6,429.78
6. Step 6: Final answer
   x = 5,784.83