Finding the Fourth Proportional to 109.41, 164.18 and 61.32

Step by Step Solution

1. Step 1: Write the proportion equation
   109.41 : 164.18 = 61.32 : x
2. Step 2: Convert to fraction form
   109.41/164.18 = 61.32/x
3. Step 3: Cross multiply
   109.41x = 164.18 × 61.32
4. Step 4: Simplify right side
   109.41x = 10,067.21
5. Step 5: Solve for x
   x = 10,067.21/109.41
6. Step 6: Final answer
   x = 92.01