Finding the Fourth Proportional to 6,646.49, 9,966.05 and 3,084.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,646.49 : 9,966.05 = 3,084.72 : x
2. Step 2: Convert to fraction form
   6,646.49/9,966.05 = 3,084.72/x
3. Step 3: Cross multiply
   6,646.49x = 9,966.05 × 3,084.72
4. Step 4: Simplify right side
   6,646.49x = 30,742,458.33
5. Step 5: Solve for x
   x = 30,742,458.33/6,646.49
6. Step 6: Final answer
   x = 4,625.37