Finding the Fourth Proportional to 6,680.34, 9,218.88 and 3,696.17

Step by Step Solution

1. Step 1: Write the proportion equation
   6,680.34 : 9,218.88 = 3,696.17 : x
2. Step 2: Convert to fraction form
   6,680.34/9,218.88 = 3,696.17/x
3. Step 3: Cross multiply
   6,680.34x = 9,218.88 × 3,696.17
4. Step 4: Simplify right side
   6,680.34x = 34,074,501.60
5. Step 5: Solve for x
   x = 34,074,501.60/6,680.34
6. Step 6: Final answer
   x = 5,100.71