Finding the Fourth Proportional to 85.69, 118.25 and 46.88

Step by Step Solution

1. Step 1: Write the proportion equation
   85.69 : 118.25 = 46.88 : x
2. Step 2: Convert to fraction form
   85.69/118.25 = 46.88/x
3. Step 3: Cross multiply
   85.69x = 118.25 × 46.88
4. Step 4: Simplify right side
   85.69x = 5,543.56
5. Step 5: Solve for x
   x = 5,543.56/85.69
6. Step 6: Final answer
   x = 64.69