Finding the Fourth Proportional to 42.99, 59.31 and 33.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42.99 : 59.31 = 33.16 : x
2. Step 2: Convert to fraction form
   42.99/59.31 = 33.16/x
3. Step 3: Cross multiply
   42.99x = 59.31 × 33.16
4. Step 4: Simplify right side
   42.99x = 1,966.72
5. Step 5: Solve for x
   x = 1,966.72/42.99
6. Step 6: Final answer
   x = 45.75