Finding the Fourth Proportional to 89.99, 134.77 and 59.53

Step by Step Solution

1. Step 1: Write the proportion equation
   89.99 : 134.77 = 59.53 : x
2. Step 2: Convert to fraction form
   89.99/134.77 = 59.53/x
3. Step 3: Cross multiply
   89.99x = 134.77 × 59.53
4. Step 4: Simplify right side
   89.99x = 8,021.89
5. Step 5: Solve for x
   x = 8,021.89/89.99
6. Step 6: Final answer
   x = 89.14