Finding the Fourth Proportional to 94.91, 130.83 and 79.42

Step by Step Solution

1. Step 1: Write the proportion equation
   94.91 : 130.83 = 79.42 : x
2. Step 2: Convert to fraction form
   94.91/130.83 = 79.42/x
3. Step 3: Cross multiply
   94.91x = 130.83 × 79.42
4. Step 4: Simplify right side
   94.91x = 10,389.89
5. Step 5: Solve for x
   x = 10,389.89/94.91
6. Step 6: Final answer
   x = 109.47