Finding the Fourth Proportional to 11,920.98, 17,877.83 and 8,246.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,920.98 : 17,877.83 = 8,246.82 : x
2. Step 2: Convert to fraction form
   11,920.98/17,877.83 = 8,246.82/x
3. Step 3: Cross multiply
   11,920.98x = 17,877.83 × 8,246.82
4. Step 4: Simplify right side
   11,920.98x = 147,435,204.77
5. Step 5: Solve for x
   x = 147,435,204.77/11,920.98
6. Step 6: Final answer
   x = 12,367.71