Finding the Fourth Proportional to 39.57, 59.31 and 34.76

Step by Step Solution

1. Step 1: Write the proportion equation
   39.57 : 59.31 = 34.76 : x
2. Step 2: Convert to fraction form
   39.57/59.31 = 34.76/x
3. Step 3: Cross multiply
   39.57x = 59.31 × 34.76
4. Step 4: Simplify right side
   39.57x = 2,061.32
5. Step 5: Solve for x
   x = 2,061.32/39.57
6. Step 6: Final answer
   x = 52.09