Finding the Fourth Proportional to 85.98, 118.79 and 85.37

Step by Step Solution

1. Step 1: Write the proportion equation
   85.98 : 118.79 = 85.37 : x
2. Step 2: Convert to fraction form
   85.98/118.79 = 85.37/x
3. Step 3: Cross multiply
   85.98x = 118.79 × 85.37
4. Step 4: Simplify right side
   85.98x = 10,141.10
5. Step 5: Solve for x
   x = 10,141.10/85.98
6. Step 6: Final answer
   x = 117.95