Finding the Fourth Proportional to 78.94, 108.89 and 46.17

Step by Step Solution

1. Step 1: Write the proportion equation
   78.94 : 108.89 = 46.17 : x
2. Step 2: Convert to fraction form
   78.94/108.89 = 46.17/x
3. Step 3: Cross multiply
   78.94x = 108.89 × 46.17
4. Step 4: Simplify right side
   78.94x = 5,027.65
5. Step 5: Solve for x
   x = 5,027.65/78.94
6. Step 6: Final answer
   x = 63.69