Finding the Fourth Proportional to 42.79, 59.06 and 33.07

Step by Step Solution

1. Step 1: Write the proportion equation
   42.79 : 59.06 = 33.07 : x
2. Step 2: Convert to fraction form
   42.79/59.06 = 33.07/x
3. Step 3: Cross multiply
   42.79x = 59.06 × 33.07
4. Step 4: Simplify right side
   42.79x = 1,952.82
5. Step 5: Solve for x
   x = 1,952.82/42.79
6. Step 6: Final answer
   x = 45.64