Finding the Fourth Proportional to 6,287.42, 8,677.33 and 3,930.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,287.42 : 8,677.33 = 3,930.32 : x
2. Step 2: Convert to fraction form
   6,287.42/8,677.33 = 3,930.32/x
3. Step 3: Cross multiply
   6,287.42x = 8,677.33 × 3,930.32
4. Step 4: Simplify right side
   6,287.42x = 34,104,695.51
5. Step 5: Solve for x
   x = 34,104,695.51/6,287.42
6. Step 6: Final answer
   x = 5,424.27