Finding the Fourth Proportional to 11,987.96, 16,540.88 and 7,271.33

Step by Step Solution

1. Step 1: Write the proportion equation
   11,987.96 : 16,540.88 = 7,271.33 : x
2. Step 2: Convert to fraction form
   11,987.96/16,540.88 = 7,271.33/x
3. Step 3: Cross multiply
   11,987.96x = 16,540.88 × 7,271.33
4. Step 4: Simplify right side
   11,987.96x = 120,274,077.91
5. Step 5: Solve for x
   x = 120,274,077.91/11,987.96
6. Step 6: Final answer
   x = 10,032.91