Finding the Fourth Proportional to 11,706.55, 16,144.50 and 7,731.67

Step by Step Solution

1. Step 1: Write the proportion equation
   11,706.55 : 16,144.50 = 7,731.67 : x
2. Step 2: Convert to fraction form
   11,706.55/16,144.50 = 7,731.67/x
3. Step 3: Cross multiply
   11,706.55x = 16,144.50 × 7,731.67
4. Step 4: Simplify right side
   11,706.55x = 124,823,946.32
5. Step 5: Solve for x
   x = 124,823,946.32/11,706.55
6. Step 6: Final answer
   x = 10,662.74