Finding the Fourth Proportional to 6,464.61, 8,917.56 and 3,811.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,464.61 : 8,917.56 = 3,811.32 : x
2. Step 2: Convert to fraction form
   6,464.61/8,917.56 = 3,811.32/x
3. Step 3: Cross multiply
   6,464.61x = 8,917.56 × 3,811.32
4. Step 4: Simplify right side
   6,464.61x = 33,987,674.78
5. Step 5: Solve for x
   x = 33,987,674.78/6,464.61
6. Step 6: Final answer
   x = 5,257.50