Finding the Fourth Proportional to 42.99, 59.37 and 33.78

Step by Step Solution

1. Step 1: Write the proportion equation
   42.99 : 59.37 = 33.78 : x
2. Step 2: Convert to fraction form
   42.99/59.37 = 33.78/x
3. Step 3: Cross multiply
   42.99x = 59.37 × 33.78
4. Step 4: Simplify right side
   42.99x = 2,005.52
5. Step 5: Solve for x
   x = 2,005.52/42.99
6. Step 6: Final answer
   x = 46.65