Finding the Fourth Proportional to 25,578.56, 35,304.18 and 16,636.16

Step by Step Solution

1. Step 1: Write the proportion equation
   25,578.56 : 35,304.18 = 16,636.16 : x
2. Step 2: Convert to fraction form
   25,578.56/35,304.18 = 16,636.16/x
3. Step 3: Cross multiply
   25,578.56x = 35,304.18 × 16,636.16
4. Step 4: Simplify right side
   25,578.56x = 587,326,013.02
5. Step 5: Solve for x
   x = 587,326,013.02/25,578.56
6. Step 6: Final answer
   x = 22,961.65