Finding the Fourth Proportional to 93,207.39, 139,550.57 and 50,359.31

Step by Step Solution

1. Step 1: Write the proportion equation
   93,207.39 : 139,550.57 = 50,359.31 : x
2. Step 2: Convert to fraction form
   93,207.39/139,550.57 = 50,359.31/x
3. Step 3: Cross multiply
   93,207.39x = 139,550.57 × 50,359.31
4. Step 4: Simplify right side
   93,207.39x = 7,027,670,662.59
5. Step 5: Solve for x
   x = 7,027,670,662.59/93,207.39
6. Step 6: Final answer
   x = 75,398.21