Finding the Fourth Proportional to 11,172.72, 16,733.57 and 5,333.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,172.72 : 16,733.57 = 5,333.43 : x
2. Step 2: Convert to fraction form
   11,172.72/16,733.57 = 5,333.43/x
3. Step 3: Cross multiply
   11,172.72x = 16,733.57 × 5,333.43
4. Step 4: Simplify right side
   11,172.72x = 89,247,297.58
5. Step 5: Solve for x
   x = 89,247,297.58/11,172.72
6. Step 6: Final answer
   x = 7,987.97