Finding the Fourth Proportional to 78,644.56, 108,566.64 and 50,366.56

Step by Step Solution

1. Step 1: Write the proportion equation
   78,644.56 : 108,566.64 = 50,366.56 : x
2. Step 2: Convert to fraction form
   78,644.56/108,566.64 = 50,366.56/x
3. Step 3: Cross multiply
   78,644.56x = 108,566.64 × 50,366.56
4. Step 4: Simplify right side
   78,644.56x = 5,468,128,187.56
5. Step 5: Solve for x
   x = 5,468,128,187.56/78,644.56
6. Step 6: Final answer
   x = 69,529.64