Finding the Fourth Proportional to 7,103.82, 9,802.72 and 3,917.11

Step by Step Solution

1. Step 1: Write the proportion equation
   7,103.82 : 9,802.72 = 3,917.11 : x
2. Step 2: Convert to fraction form
   7,103.82/9,802.72 = 3,917.11/x
3. Step 3: Cross multiply
   7,103.82x = 9,802.72 × 3,917.11
4. Step 4: Simplify right side
   7,103.82x = 38,398,263.94
5. Step 5: Solve for x
   x = 38,398,263.94/7,103.82
6. Step 6: Final answer
   x = 5,405.30