Finding the Fourth Proportional to 139,372.42, 209,046.33 and 50,626.70

Step by Step Solution

1. Step 1: Write the proportion equation
   139,372.42 : 209,046.33 = 50,626.70 : x
2. Step 2: Convert to fraction form
   139,372.42/209,046.33 = 50,626.70/x
3. Step 3: Cross multiply
   139,372.42x = 209,046.33 × 50,626.70
4. Step 4: Simplify right side
   139,372.42x = 10,583,325,835.01
5. Step 5: Solve for x
   x = 10,583,325,835.01/139,372.42
6. Step 6: Final answer
   x = 75,935.58