Finding the Fourth Proportional to 8,559.28, 12,835.86 and 3,294.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,559.28 : 12,835.86 = 3,294.68 : x
2. Step 2: Convert to fraction form
   8,559.28/12,835.86 = 3,294.68/x
3. Step 3: Cross multiply
   8,559.28x = 12,835.86 × 3,294.68
4. Step 4: Simplify right side
   8,559.28x = 42,290,051.22
5. Step 5: Solve for x
   x = 42,290,051.22/8,559.28
6. Step 6: Final answer
   x = 4,940.84