Finding the Fourth Proportional to 50,478.69, 69,657.78 and 30,331.83

Step by Step Solution

1. Step 1: Write the proportion equation
   50,478.69 : 69,657.78 = 30,331.83 : x
2. Step 2: Convert to fraction form
   50,478.69/69,657.78 = 30,331.83/x
3. Step 3: Cross multiply
   50,478.69x = 69,657.78 × 30,331.83
4. Step 4: Simplify right side
   50,478.69x = 2,112,847,941.14
5. Step 5: Solve for x
   x = 2,112,847,941.14/50,478.69
6. Step 6: Final answer
   x = 41,856.24