Finding the Fourth Proportional to 10,987.37, 15,162.60 and 5,951.57

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.37 : 15,162.60 = 5,951.57 : x
2. Step 2: Convert to fraction form
   10,987.37/15,162.60 = 5,951.57/x
3. Step 3: Cross multiply
   10,987.37x = 15,162.60 × 5,951.57
4. Step 4: Simplify right side
   10,987.37x = 90,241,275.28
5. Step 5: Solve for x
   x = 90,241,275.28/10,987.37
6. Step 6: Final answer
   x = 8,213.18