Finding the Fourth Proportional to 7,726.55, 10,662.71 and 4,189.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,726.55 : 10,662.71 = 4,189.82 : x
2. Step 2: Convert to fraction form
   7,726.55/10,662.71 = 4,189.82/x
3. Step 3: Cross multiply
   7,726.55x = 10,662.71 × 4,189.82
4. Step 4: Simplify right side
   7,726.55x = 44,674,761.35
5. Step 5: Solve for x
   x = 44,674,761.35/7,726.55
6. Step 6: Final answer
   x = 5,781.98