Finding the Fourth Proportional to 7,726.31, 10,662.31 and 4,189.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,726.31 : 10,662.31 = 4,189.52 : x
2. Step 2: Convert to fraction form
   7,726.31/10,662.31 = 4,189.52/x
3. Step 3: Cross multiply
   7,726.31x = 10,662.31 × 4,189.52
4. Step 4: Simplify right side
   7,726.31x = 44,669,910.53
5. Step 5: Solve for x
   x = 44,669,910.53/7,726.31
6. Step 6: Final answer
   x = 5,781.54