Finding the Fourth Proportional to 42.61, 58.77 and 33.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42.61 : 58.77 = 33.39 : x
2. Step 2: Convert to fraction form
   42.61/58.77 = 33.39/x
3. Step 3: Cross multiply
   42.61x = 58.77 × 33.39
4. Step 4: Simplify right side
   42.61x = 1,962.33
5. Step 5: Solve for x
   x = 1,962.33/42.61
6. Step 6: Final answer
   x = 46.05