Finding the Fourth Proportional to 6,685.98, 10,007.28 and 3,561.54

Step by Step Solution

1. Step 1: Write the proportion equation
   6,685.98 : 10,007.28 = 3,561.54 : x
2. Step 2: Convert to fraction form
   6,685.98/10,007.28 = 3,561.54/x
3. Step 3: Cross multiply
   6,685.98x = 10,007.28 × 3,561.54
4. Step 4: Simplify right side
   6,685.98x = 35,641,328.01
5. Step 5: Solve for x
   x = 35,641,328.01/6,685.98
6. Step 6: Final answer
   x = 5,330.76