Finding the Fourth Proportional to 12,231.88, 16,880.00 and 6,926.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,231.88 : 16,880.00 = 6,926.72 : x
2. Step 2: Convert to fraction form
   12,231.88/16,880.00 = 6,926.72/x
3. Step 3: Cross multiply
   12,231.88x = 16,880.00 × 6,926.72
4. Step 4: Simplify right side
   12,231.88x = 116,922,914.57
5. Step 5: Solve for x
   x = 116,922,914.57/12,231.88
6. Step 6: Final answer
   x = 9,558.87