Finding the Fourth Proportional to 86.98, 119.96 and 59.34

Step by Step Solution

1. Step 1: Write the proportion equation
   86.98 : 119.96 = 59.34 : x
2. Step 2: Convert to fraction form
   86.98/119.96 = 59.34/x
3. Step 3: Cross multiply
   86.98x = 119.96 × 59.34
4. Step 4: Simplify right side
   86.98x = 7,118.43
5. Step 5: Solve for x
   x = 7,118.43/86.98
6. Step 6: Final answer
   x = 81.84