Finding the Fourth Proportional to 8,554.76, 12,829.08 and 3,290.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,554.76 : 12,829.08 = 3,290.12 : x
2. Step 2: Convert to fraction form
   8,554.76/12,829.08 = 3,290.12/x
3. Step 3: Cross multiply
   8,554.76x = 12,829.08 × 3,290.12
4. Step 4: Simplify right side
   8,554.76x = 42,209,212.69
5. Step 5: Solve for x
   x = 42,209,212.69/8,554.76
6. Step 6: Final answer
   x = 4,934.00