Finding the Fourth Proportional to 42.12, 57.98 and 32.76

Step by Step Solution

1. Step 1: Write the proportion equation
   42.12 : 57.98 = 32.76 : x
2. Step 2: Convert to fraction form
   42.12/57.98 = 32.76/x
3. Step 3: Cross multiply
   42.12x = 57.98 × 32.76
4. Step 4: Simplify right side
   42.12x = 1,899.42
5. Step 5: Solve for x
   x = 1,899.42/42.12
6. Step 6: Final answer
   x = 45.10