Finding the Fourth Proportional to 59.35, 81.89 and 34.78

Step by Step Solution

1. Step 1: Write the proportion equation
   59.35 : 81.89 = 34.78 : x
2. Step 2: Convert to fraction form
   59.35/81.89 = 34.78/x
3. Step 3: Cross multiply
   59.35x = 81.89 × 34.78
4. Step 4: Simplify right side
   59.35x = 2,848.13
5. Step 5: Solve for x
   x = 2,848.13/59.35
6. Step 6: Final answer
   x = 47.99