Finding the Fourth Proportional to 6,366.80, 8,789.32 and 4,012.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,366.80 : 8,789.32 = 4,012.56 : x
2. Step 2: Convert to fraction form
   6,366.80/8,789.32 = 4,012.56/x
3. Step 3: Cross multiply
   6,366.80x = 8,789.32 × 4,012.56
4. Step 4: Simplify right side
   6,366.80x = 35,267,673.86
5. Step 5: Solve for x
   x = 35,267,673.86/6,366.80
6. Step 6: Final answer
   x = 5,539.31