Finding the Fourth Proportional to 79.05, 118.50 and 42.94

Step by Step Solution

1. Step 1: Write the proportion equation
   79.05 : 118.50 = 42.94 : x
2. Step 2: Convert to fraction form
   79.05/118.50 = 42.94/x
3. Step 3: Cross multiply
   79.05x = 118.50 × 42.94
4. Step 4: Simplify right side
   79.05x = 5,088.39
5. Step 5: Solve for x
   x = 5,088.39/79.05
6. Step 6: Final answer
   x = 64.37