Finding the Fourth Proportional to 109.38, 164.00 and 79.01

Step by Step Solution

1. Step 1: Write the proportion equation
   109.38 : 164.00 = 79.01 : x
2. Step 2: Convert to fraction form
   109.38/164.00 = 79.01/x
3. Step 3: Cross multiply
   109.38x = 164.00 × 79.01
4. Step 4: Simplify right side
   109.38x = 12,956.42
5. Step 5: Solve for x
   x = 12,956.42/109.38
6. Step 6: Final answer
   x = 118.45