Finding the Fourth Proportional to 6,918.82, 10,384.71 and 3,223.60

Step by Step Solution

1. Step 1: Write the proportion equation
   6,918.82 : 10,384.71 = 3,223.60 : x
2. Step 2: Convert to fraction form
   6,918.82/10,384.71 = 3,223.60/x
3. Step 3: Cross multiply
   6,918.82x = 10,384.71 × 3,223.60
4. Step 4: Simplify right side
   6,918.82x = 33,476,151.16
5. Step 5: Solve for x
   x = 33,476,151.16/6,918.82
6. Step 6: Final answer
   x = 4,838.42