Finding the Fourth Proportional to 120.88, 181.37 and 59.98

Step by Step Solution

1. Step 1: Write the proportion equation
   120.88 : 181.37 = 59.98 : x
2. Step 2: Convert to fraction form
   120.88/181.37 = 59.98/x
3. Step 3: Cross multiply
   120.88x = 181.37 × 59.98
4. Step 4: Simplify right side
   120.88x = 10,878.57
5. Step 5: Solve for x
   x = 10,878.57/120.88
6. Step 6: Final answer
   x = 89.99