Finding the Fourth Proportional to 139,951.98, 209,919.33 and 56,843.82

Step by Step Solution

1. Step 1: Write the proportion equation
   139,951.98 : 209,919.33 = 56,843.82 : x
2. Step 2: Convert to fraction form
   139,951.98/209,919.33 = 56,843.82/x
3. Step 3: Cross multiply
   139,951.98x = 209,919.33 × 56,843.82
4. Step 4: Simplify right side
   139,951.98x = 11,932,616,609.04
5. Step 5: Solve for x
   x = 11,932,616,609.04/139,951.98
6. Step 6: Final answer
   x = 85,262.22