Finding the Fourth Proportional to 6,355.59, 8,770.74 and 3,561.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,355.59 : 8,770.74 = 3,561.09 : x
2. Step 2: Convert to fraction form
   6,355.59/8,770.74 = 3,561.09/x
3. Step 3: Cross multiply
   6,355.59x = 8,770.74 × 3,561.09
4. Step 4: Simplify right side
   6,355.59x = 31,233,394.51
5. Step 5: Solve for x
   x = 31,233,394.51/6,355.59
6. Step 6: Final answer
   x = 4,914.32