Finding the Fourth Proportional to 78.59, 108.37 and 50.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78.59 : 108.37 = 50.94 : x
2. Step 2: Convert to fraction form
   78.59/108.37 = 50.94/x
3. Step 3: Cross multiply
   78.59x = 108.37 × 50.94
4. Step 4: Simplify right side
   78.59x = 5,520.37
5. Step 5: Solve for x
   x = 5,520.37/78.59
6. Step 6: Final answer
   x = 70.24