Finding the Fourth Proportional to 10,987, 15,161.98 and 5,951.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987 : 15,161.98 = 5,951.10 : x
2. Step 2: Convert to fraction form
   10,987/15,161.98 = 5,951.10/x
3. Step 3: Cross multiply
   10,987x = 15,161.98 × 5,951.10
4. Step 4: Simplify right side
   10,987x = 90,230,459.18
5. Step 5: Solve for x
   x = 90,230,459.18/10,987
6. Step 6: Final answer
   x = 8,212.47