Finding the Fourth Proportional to 78,695.37, 108,580.37 and 50,439.33

Step by Step Solution

1. Step 1: Write the proportion equation
   78,695.37 : 108,580.37 = 50,439.33 : x
2. Step 2: Convert to fraction form
   78,695.37/108,580.37 = 50,439.33/x
3. Step 3: Cross multiply
   78,695.37x = 108,580.37 × 50,439.33
4. Step 4: Simplify right side
   78,695.37x = 5,476,720,861.76
5. Step 5: Solve for x
   x = 5,476,720,861.76/78,695.37
6. Step 6: Final answer
   x = 69,593.94