Finding the Fourth Proportional to 13,694.83, 18,897.24 and 7,726.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,694.83 : 18,897.24 = 7,726.15 : x
2. Step 2: Convert to fraction form
   13,694.83/18,897.24 = 7,726.15/x
3. Step 3: Cross multiply
   13,694.83x = 18,897.24 × 7,726.15
4. Step 4: Simplify right side
   13,694.83x = 146,002,910.83
5. Step 5: Solve for x
   x = 146,002,910.83/13,694.83
6. Step 6: Final answer
   x = 10,661.17