Finding the Fourth Proportional to 6,359.81, 8,776.82 and 3,565.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,359.81 : 8,776.82 = 3,565.31 : x
2. Step 2: Convert to fraction form
   6,359.81/8,776.82 = 3,565.31/x
3. Step 3: Cross multiply
   6,359.81x = 8,776.82 × 3,565.31
4. Step 4: Simplify right side
   6,359.81x = 31,292,088.23
5. Step 5: Solve for x
   x = 31,292,088.23/6,359.81
6. Step 6: Final answer
   x = 4,920.28