Finding the Fourth Proportional to 8,583.30, 12,866.58 and 3,654.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,583.30 : 12,866.58 = 3,654.18 : x
2. Step 2: Convert to fraction form
   8,583.30/12,866.58 = 3,654.18/x
3. Step 3: Cross multiply
   8,583.30x = 12,866.58 × 3,654.18
4. Step 4: Simplify right side
   8,583.30x = 47,016,799.30
5. Step 5: Solve for x
   x = 47,016,799.30/8,583.30
6. Step 6: Final answer
   x = 5,477.71