Finding the Fourth Proportional to 11,271.83, 16,910.49 and 7,946.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,271.83 : 16,910.49 = 7,946.57 : x
2. Step 2: Convert to fraction form
   11,271.83/16,910.49 = 7,946.57/x
3. Step 3: Cross multiply
   11,271.83x = 16,910.49 × 7,946.57
4. Step 4: Simplify right side
   11,271.83x = 134,380,307.97
5. Step 5: Solve for x
   x = 134,380,307.97/11,271.83
6. Step 6: Final answer
   x = 11,921.79