Finding the Fourth Proportional to 10,987.38, 15,162.63 and 5,951.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,987.38 : 15,162.63 = 5,951.61 : x
2. Step 2: Convert to fraction form
   10,987.38/15,162.63 = 5,951.61/x
3. Step 3: Cross multiply
   10,987.38x = 15,162.63 × 5,951.61
4. Step 4: Simplify right side
   10,987.38x = 90,242,038.02
5. Step 5: Solve for x
   x = 90,242,038.02/10,987.38
6. Step 6: Final answer
   x = 8,213.24