Finding the Fourth Proportional to 89.83, 134.78 and 34.98

Step by Step Solution

1. Step 1: Write the proportion equation
   89.83 : 134.78 = 34.98 : x
2. Step 2: Convert to fraction form
   89.83/134.78 = 34.98/x
3. Step 3: Cross multiply
   89.83x = 134.78 × 34.98
4. Step 4: Simplify right side
   89.83x = 4,714.60
5. Step 5: Solve for x
   x = 4,714.60/89.83
6. Step 6: Final answer
   x = 52.48