Finding the Fourth Proportional to 17,616.62, 26,429.52 and 5,136.38

Step by Step Solution

1. Step 1: Write the proportion equation
   17,616.62 : 26,429.52 = 5,136.38 : x
2. Step 2: Convert to fraction form
   17,616.62/26,429.52 = 5,136.38/x
3. Step 3: Cross multiply
   17,616.62x = 26,429.52 × 5,136.38
4. Step 4: Simplify right side
   17,616.62x = 135,752,057.94
5. Step 5: Solve for x
   x = 135,752,057.94/17,616.62
6. Step 6: Final answer
   x = 7,705.91