Finding the Fourth Proportional to 10,675.10, 16,092.72 and 9,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,675.10 : 16,092.72 = 9,961.50 : x
2. Step 2: Convert to fraction form
   10,675.10/16,092.72 = 9,961.50/x
3. Step 3: Cross multiply
   10,675.10x = 16,092.72 × 9,961.50
4. Step 4: Simplify right side
   10,675.10x = 160,307,630.28
5. Step 5: Solve for x
   x = 160,307,630.28/10,675.10
6. Step 6: Final answer
   x = 15,016.97