Finding the Fourth Proportional to 6,561.31, 9,054.55 and 3,577.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,561.31 : 9,054.55 = 3,577.09 : x
2. Step 2: Convert to fraction form
   6,561.31/9,054.55 = 3,577.09/x
3. Step 3: Cross multiply
   6,561.31x = 9,054.55 × 3,577.09
4. Step 4: Simplify right side
   6,561.31x = 32,388,917.62
5. Step 5: Solve for x
   x = 32,388,917.62/6,561.31
6. Step 6: Final answer
   x = 4,936.35