Finding the Fourth Proportional to 76.69, 105.81 and 43.93

Step by Step Solution

1. Step 1: Write the proportion equation
   76.69 : 105.81 = 43.93 : x
2. Step 2: Convert to fraction form
   76.69/105.81 = 43.93/x
3. Step 3: Cross multiply
   76.69x = 105.81 × 43.93
4. Step 4: Simplify right side
   76.69x = 4,648.50
5. Step 5: Solve for x
   x = 4,648.50/76.69
6. Step 6: Final answer
   x = 60.62