Finding the Fourth Proportional to 81.06, 111.86 and 46.09

Step by Step Solution

1. Step 1: Write the proportion equation
   81.06 : 111.86 = 46.09 : x
2. Step 2: Convert to fraction form
   81.06/111.86 = 46.09/x
3. Step 3: Cross multiply
   81.06x = 111.86 × 46.09
4. Step 4: Simplify right side
   81.06x = 5,155.89
5. Step 5: Solve for x
   x = 5,155.89/81.06
6. Step 6: Final answer
   x = 63.60