Finding the Fourth Proportional to 109.06, 163.59 and 61.27

Step by Step Solution

1. Step 1: Write the proportion equation
   109.06 : 163.59 = 61.27 : x
2. Step 2: Convert to fraction form
   109.06/163.59 = 61.27/x
3. Step 3: Cross multiply
   109.06x = 163.59 × 61.27
4. Step 4: Simplify right side
   109.06x = 10,022.04
5. Step 5: Solve for x
   x = 10,022.04/109.06
6. Step 6: Final answer
   x = 91.90