Finding the Fourth Proportional to 139,051.69, 208,453.82 and 50,285.46

Step by Step Solution

1. Step 1: Write the proportion equation
   139,051.69 : 208,453.82 = 50,285.46 : x
2. Step 2: Convert to fraction form
   139,051.69/208,453.82 = 50,285.46/x
3. Step 3: Cross multiply
   139,051.69x = 208,453.82 × 50,285.46
4. Step 4: Simplify right side
   139,051.69x = 10,482,196,757.73
5. Step 5: Solve for x
   x = 10,482,196,757.73/139,051.69
6. Step 6: Final answer
   x = 75,383.46