Finding the Fourth Proportional to 78.80, 108.74 and 43.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78.80 : 108.74 = 43.82 : x
2. Step 2: Convert to fraction form
   78.80/108.74 = 43.82/x
3. Step 3: Cross multiply
   78.80x = 108.74 × 43.82
4. Step 4: Simplify right side
   78.80x = 4,764.96
5. Step 5: Solve for x
   x = 4,764.96/78.80
6. Step 6: Final answer
   x = 60.47