Finding the Fourth Proportional to 42.52, 58.69 and 30.22

Step by Step Solution

1. Step 1: Write the proportion equation
   42.52 : 58.69 = 30.22 : x
2. Step 2: Convert to fraction form
   42.52/58.69 = 30.22/x
3. Step 3: Cross multiply
   42.52x = 58.69 × 30.22
4. Step 4: Simplify right side
   42.52x = 1,773.39
5. Step 5: Solve for x
   x = 1,773.39/42.52
6. Step 6: Final answer
   x = 41.71