Finding the Fourth Proportional to 78.01, 107.67 and 46.94

Step by Step Solution

1. Step 1: Write the proportion equation
   78.01 : 107.67 = 46.94 : x
2. Step 2: Convert to fraction form
   78.01/107.67 = 46.94/x
3. Step 3: Cross multiply
   78.01x = 107.67 × 46.94
4. Step 4: Simplify right side
   78.01x = 5,054.03
5. Step 5: Solve for x
   x = 5,054.03/78.01
6. Step 6: Final answer
   x = 64.79