Finding the Fourth Proportional to 6,647.46, 9,172.86 and 3,663.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,647.46 : 9,172.86 = 3,663.42 : x
2. Step 2: Convert to fraction form
   6,647.46/9,172.86 = 3,663.42/x
3. Step 3: Cross multiply
   6,647.46x = 9,172.86 × 3,663.42
4. Step 4: Simplify right side
   6,647.46x = 33,604,038.78
5. Step 5: Solve for x
   x = 33,604,038.78/6,647.46
6. Step 6: Final answer
   x = 5,055.17