Finding the Fourth Proportional to 42.94, 58.90 and 42.04

Step by Step Solution

1. Step 1: Write the proportion equation
   42.94 : 58.90 = 42.04 : x
2. Step 2: Convert to fraction form
   42.94/58.90 = 42.04/x
3. Step 3: Cross multiply
   42.94x = 58.90 × 42.04
4. Step 4: Simplify right side
   42.94x = 2,476.16
5. Step 5: Solve for x
   x = 2,476.16/42.94
6. Step 6: Final answer
   x = 57.67