Finding the Fourth Proportional to 17,618.69, 26,433.51 and 5,772.56

Step by Step Solution

1. Step 1: Write the proportion equation
   17,618.69 : 26,433.51 = 5,772.56 : x
2. Step 2: Convert to fraction form
   17,618.69/26,433.51 = 5,772.56/x
3. Step 3: Cross multiply
   17,618.69x = 26,433.51 × 5,772.56
4. Step 4: Simplify right side
   17,618.69x = 152,588,987.58
5. Step 5: Solve for x
   x = 152,588,987.58/17,618.69
6. Step 6: Final answer
   x = 8,660.63