Finding the Fourth Proportional to 11,255.96, 16,880.06 and 5,331.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,255.96 : 16,880.06 = 5,331.96 : x
2. Step 2: Convert to fraction form
   11,255.96/16,880.06 = 5,331.96/x
3. Step 3: Cross multiply
   11,255.96x = 16,880.06 × 5,331.96
4. Step 4: Simplify right side
   11,255.96x = 90,003,804.72
5. Step 5: Solve for x
   x = 90,003,804.72/11,255.96
6. Step 6: Final answer
   x = 7,996.10