Finding the Fourth Proportional to 10,987.35, 15,162.59 and 5,951.58

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.35 : 15,162.59 = 5,951.58 : x
2. Step 2: Convert to fraction form
   10,987.35/15,162.59 = 5,951.58/x
3. Step 3: Cross multiply
   10,987.35x = 15,162.59 × 5,951.58
4. Step 4: Simplify right side
   10,987.35x = 90,241,325.41
5. Step 5: Solve for x
   x = 90,241,325.41/10,987.35
6. Step 6: Final answer
   x = 8,213.20