Finding the Fourth Proportional to 43.05, 58.59 and 42.84

Step by Step Solution

1. Step 1: Write the proportion equation
   43.05 : 58.59 = 42.84 : x
2. Step 2: Convert to fraction form
   43.05/58.59 = 42.84/x
3. Step 3: Cross multiply
   43.05x = 58.59 × 42.84
4. Step 4: Simplify right side
   43.05x = 2,510.00
5. Step 5: Solve for x
   x = 2,510.00/43.05
6. Step 6: Final answer
   x = 58.30