Finding the Fourth Proportional to 139,595.56, 192,578.34 and 82,974.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,595.56 : 192,578.34 = 82,974.76 : x
2. Step 2: Convert to fraction form
   139,595.56/192,578.34 = 82,974.76/x
3. Step 3: Cross multiply
   139,595.56x = 192,578.34 × 82,974.76
4. Step 4: Simplify right side
   139,595.56x = 15,979,141,542.70
5. Step 5: Solve for x
   x = 15,979,141,542.70/139,595.56
6. Step 6: Final answer
   x = 114,467.41