Finding the Fourth Proportional to 10,774.42, 16,137.02 and 9,691.85

Step by Step Solution

1. Step 1: Write the proportion equation
   10,774.42 : 16,137.02 = 9,691.85 : x
2. Step 2: Convert to fraction form
   10,774.42/16,137.02 = 9,691.85/x
3. Step 3: Cross multiply
   10,774.42x = 16,137.02 × 9,691.85
4. Step 4: Simplify right side
   10,774.42x = 156,397,641.86
5. Step 5: Solve for x
   x = 156,397,641.86/10,774.42
6. Step 6: Final answer
   x = 14,515.65