Finding the Fourth Proportional to 94.86, 130.59 and 78.29

Step by Step Solution

1. Step 1: Write the proportion equation
   94.86 : 130.59 = 78.29 : x
2. Step 2: Convert to fraction form
   94.86/130.59 = 78.29/x
3. Step 3: Cross multiply
   94.86x = 130.59 × 78.29
4. Step 4: Simplify right side
   94.86x = 10,223.89
5. Step 5: Solve for x
   x = 10,223.89/94.86
6. Step 6: Final answer
   x = 107.78