Finding the Fourth Proportional to 43.94, 60.72 and 42.58

Step by Step Solution

1. Step 1: Write the proportion equation
   43.94 : 60.72 = 42.58 : x
2. Step 2: Convert to fraction form
   43.94/60.72 = 42.58/x
3. Step 3: Cross multiply
   43.94x = 60.72 × 42.58
4. Step 4: Simplify right side
   43.94x = 2,585.39
5. Step 5: Solve for x
   x = 2,585.39/43.94
6. Step 6: Final answer
   x = 58.84