Finding the Fourth Proportional to 7,726.34, 10,662.37 and 4,189.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,726.34 : 10,662.37 = 4,189.57 : x
2. Step 2: Convert to fraction form
   7,726.34/10,662.37 = 4,189.57/x
3. Step 3: Cross multiply
   7,726.34x = 10,662.37 × 4,189.57
4. Step 4: Simplify right side
   7,726.34x = 44,670,745.48
5. Step 5: Solve for x
   x = 44,670,745.48/7,726.34
6. Step 6: Final answer
   x = 5,781.62