Finding the Fourth Proportional to 89.98, 124.14 and 65.37

Step by Step Solution

1. Step 1: Write the proportion equation
   89.98 : 124.14 = 65.37 : x
2. Step 2: Convert to fraction form
   89.98/124.14 = 65.37/x
3. Step 3: Cross multiply
   89.98x = 124.14 × 65.37
4. Step 4: Simplify right side
   89.98x = 8,114.32
5. Step 5: Solve for x
   x = 8,114.32/89.98
6. Step 6: Final answer
   x = 90.18