Finding the Fourth Proportional to 78.86, 118.55 and 44.69

Step by Step Solution

1. Step 1: Write the proportion equation
   78.86 : 118.55 = 44.69 : x
2. Step 2: Convert to fraction form
   78.86/118.55 = 44.69/x
3. Step 3: Cross multiply
   78.86x = 118.55 × 44.69
4. Step 4: Simplify right side
   78.86x = 5,298.41
5. Step 5: Solve for x
   x = 5,298.41/78.86
6. Step 6: Final answer
   x = 67.19