Finding the Fourth Proportional to 89.48, 123.18 and 73.02

Step by Step Solution

1. Step 1: Write the proportion equation
   89.48 : 123.18 = 73.02 : x
2. Step 2: Convert to fraction form
   89.48/123.18 = 73.02/x
3. Step 3: Cross multiply
   89.48x = 123.18 × 73.02
4. Step 4: Simplify right side
   89.48x = 8,994.60
5. Step 5: Solve for x
   x = 8,994.60/89.48
6. Step 6: Final answer
   x = 100.52