Finding the Fourth Proportional to 16,869.45, 25,304.61 and 4,389.18

Step by Step Solution

1. Step 1: Write the proportion equation
   16,869.45 : 25,304.61 = 4,389.18 : x
2. Step 2: Convert to fraction form
   16,869.45/25,304.61 = 4,389.18/x
3. Step 3: Cross multiply
   16,869.45x = 25,304.61 × 4,389.18
4. Step 4: Simplify right side
   16,869.45x = 111,066,488.12
5. Step 5: Solve for x
   x = 111,066,488.12/16,869.45
6. Step 6: Final answer
   x = 6,583.88