Finding the Fourth Proportional to 11,570.65, 17,356.78 and 5,725.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,570.65 : 17,356.78 = 5,725.69 : x
2. Step 2: Convert to fraction form
   11,570.65/17,356.78 = 5,725.69/x
3. Step 3: Cross multiply
   11,570.65x = 17,356.78 × 5,725.69
4. Step 4: Simplify right side
   11,570.65x = 99,379,505.44
5. Step 5: Solve for x
   x = 99,379,505.44/11,570.65
6. Step 6: Final answer
   x = 8,588.93