Finding the Fourth Proportional to 6,429.39, 8,872.77 and 3,776.75

Step by Step Solution

1. Step 1: Write the proportion equation
   6,429.39 : 8,872.77 = 3,776.75 : x
2. Step 2: Convert to fraction form
   6,429.39/8,872.77 = 3,776.75/x
3. Step 3: Cross multiply
   6,429.39x = 8,872.77 × 3,776.75
4. Step 4: Simplify right side
   6,429.39x = 33,510,234.10
5. Step 5: Solve for x
   x = 33,510,234.10/6,429.39
6. Step 6: Final answer
   x = 5,212.04