Finding the Fourth Proportional to 7,185.46, 10,779.41 and 3,290.17

Step by Step Solution

1. Step 1: Write the proportion equation
   7,185.46 : 10,779.41 = 3,290.17 : x
2. Step 2: Convert to fraction form
   7,185.46/10,779.41 = 3,290.17/x
3. Step 3: Cross multiply
   7,185.46x = 10,779.41 × 3,290.17
4. Step 4: Simplify right side
   7,185.46x = 35,466,091.40
5. Step 5: Solve for x
   x = 35,466,091.40/7,185.46
6. Step 6: Final answer
   x = 4,935.81