Finding the Fourth Proportional to 11,687.73, 16,142.18 and 7,726.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,687.73 : 16,142.18 = 7,726.83 : x
2. Step 2: Convert to fraction form
   11,687.73/16,142.18 = 7,726.83/x
3. Step 3: Cross multiply
   11,687.73x = 16,142.18 × 7,726.83
4. Step 4: Simplify right side
   11,687.73x = 124,727,880.69
5. Step 5: Solve for x
   x = 124,727,880.69/11,687.73
6. Step 6: Final answer
   x = 10,671.69