Finding the Fourth Proportional to 6,621.32, 9,134.82 and 3,826.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,621.32 : 9,134.82 = 3,826.28 : x
2. Step 2: Convert to fraction form
   6,621.32/9,134.82 = 3,826.28/x
3. Step 3: Cross multiply
   6,621.32x = 9,134.82 × 3,826.28
4. Step 4: Simplify right side
   6,621.32x = 34,952,379.07
5. Step 5: Solve for x
   x = 34,952,379.07/6,621.32
6. Step 6: Final answer
   x = 5,278.76