Finding the Fourth Proportional to 43.10, 59.15 and 42.33

Step by Step Solution

1. Step 1: Write the proportion equation
   43.10 : 59.15 = 42.33 : x
2. Step 2: Convert to fraction form
   43.10/59.15 = 42.33/x
3. Step 3: Cross multiply
   43.10x = 59.15 × 42.33
4. Step 4: Simplify right side
   43.10x = 2,503.93
5. Step 5: Solve for x
   x = 2,503.93/43.10
6. Step 6: Final answer
   x = 58.10