Finding the Fourth Proportional to 111.06, 153.27 and 61.94

Step by Step Solution

1. Step 1: Write the proportion equation
   111.06 : 153.27 = 61.94 : x
2. Step 2: Convert to fraction form
   111.06/153.27 = 61.94/x
3. Step 3: Cross multiply
   111.06x = 153.27 × 61.94
4. Step 4: Simplify right side
   111.06x = 9,493.54
5. Step 5: Solve for x
   x = 9,493.54/111.06
6. Step 6: Final answer
   x = 85.48