Finding the Fourth Proportional to 12,211.83, 16,846.79 and 7,672.59

Step by Step Solution

1. Step 1: Write the proportion equation
   12,211.83 : 16,846.79 = 7,672.59 : x
2. Step 2: Convert to fraction form
   12,211.83/16,846.79 = 7,672.59/x
3. Step 3: Cross multiply
   12,211.83x = 16,846.79 × 7,672.59
4. Step 4: Simplify right side
   12,211.83x = 129,258,474.12
5. Step 5: Solve for x
   x = 129,258,474.12/12,211.83
6. Step 6: Final answer
   x = 10,584.69