Finding the Fourth Proportional to 11,054.82, 15,229.71 and 7,691.85

Step by Step Solution

1. Step 1: Write the proportion equation
   11,054.82 : 15,229.71 = 7,691.85 : x
2. Step 2: Convert to fraction form
   11,054.82/15,229.71 = 7,691.85/x
3. Step 3: Cross multiply
   11,054.82x = 15,229.71 × 7,691.85
4. Step 4: Simplify right side
   11,054.82x = 117,144,644.86
5. Step 5: Solve for x
   x = 117,144,644.86/11,054.82
6. Step 6: Final answer
   x = 10,596.70