Finding the Fourth Proportional to 139,667.97, 209,586.03 and 50,929.05

Step by Step Solution

1. Step 1: Write the proportion equation
   139,667.97 : 209,586.03 = 50,929.05 : x
2. Step 2: Convert to fraction form
   139,667.97/209,586.03 = 50,929.05/x
3. Step 3: Cross multiply
   139,667.97x = 209,586.03 × 50,929.05
4. Step 4: Simplify right side
   139,667.97x = 10,674,017,401.17
5. Step 5: Solve for x
   x = 10,674,017,401.17/139,667.97
6. Step 6: Final answer
   x = 76,424.23