Finding the Fourth Proportional to 6,429.89, 8,872.84 and 3,596.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.89 : 8,872.84 = 3,596.78 : x
2. Step 2: Convert to fraction form
   6,429.89/8,872.84 = 3,596.78/x
3. Step 3: Cross multiply
   6,429.89x = 8,872.84 × 3,596.78
4. Step 4: Simplify right side
   6,429.89x = 31,913,653.46
5. Step 5: Solve for x
   x = 31,913,653.46/6,429.89
6. Step 6: Final answer
   x = 4,963.33