Finding the Fourth Proportional to 59.36, 81.91 and 34.78

Step by Step Solution

1. Step 1: Write the proportion equation
   59.36 : 81.91 = 34.78 : x
2. Step 2: Convert to fraction form
   59.36/81.91 = 34.78/x
3. Step 3: Cross multiply
   59.36x = 81.91 × 34.78
4. Step 4: Simplify right side
   59.36x = 2,848.83
5. Step 5: Solve for x
   x = 2,848.83/59.36
6. Step 6: Final answer
   x = 47.99