Finding the Fourth Proportional to 139,063.62, 208,471.70 and 50,297.38

Step by Step Solution

1. Step 1: Write the proportion equation
   139,063.62 : 208,471.70 = 50,297.38 : x
2. Step 2: Convert to fraction form
   139,063.62/208,471.70 = 50,297.38/x
3. Step 3: Cross multiply
   139,063.62x = 208,471.70 × 50,297.38
4. Step 4: Simplify right side
   139,063.62x = 10,485,580,314.15
5. Step 5: Solve for x
   x = 10,485,580,314.15/139,063.62
6. Step 6: Final answer
   x = 75,401.32