Finding the Fourth Proportional to 42.29, 58.38 and 41.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42.29 : 58.38 = 41.15 : x
2. Step 2: Convert to fraction form
   42.29/58.38 = 41.15/x
3. Step 3: Cross multiply
   42.29x = 58.38 × 41.15
4. Step 4: Simplify right side
   42.29x = 2,402.34
5. Step 5: Solve for x
   x = 2,402.34/42.29
6. Step 6: Final answer
   x = 56.81