Finding the Fourth Proportional to 7,216.38, 10,804.59 and 3,698.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,216.38 : 10,804.59 = 3,698.80 : x
2. Step 2: Convert to fraction form
   7,216.38/10,804.59 = 3,698.80/x
3. Step 3: Cross multiply
   7,216.38x = 10,804.59 × 3,698.80
4. Step 4: Simplify right side
   7,216.38x = 39,964,017.67
5. Step 5: Solve for x
   x = 39,964,017.67/7,216.38
6. Step 6: Final answer
   x = 5,537.96