Finding the Fourth Proportional to 8,194.28, 12,290.06 and 3,515.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,194.28 : 12,290.06 = 3,515.04 : x
2. Step 2: Convert to fraction form
   8,194.28/12,290.06 = 3,515.04/x
3. Step 3: Cross multiply
   8,194.28x = 12,290.06 × 3,515.04
4. Step 4: Simplify right side
   8,194.28x = 43,200,061.29
5. Step 5: Solve for x
   x = 43,200,061.29/8,194.28
6. Step 6: Final answer
   x = 5,271.98