Finding the Fourth Proportional to 89.34, 123.18 and 73.62

Step by Step Solution

1. Step 1: Write the proportion equation
   89.34 : 123.18 = 73.62 : x
2. Step 2: Convert to fraction form
   89.34/123.18 = 73.62/x
3. Step 3: Cross multiply
   89.34x = 123.18 × 73.62
4. Step 4: Simplify right side
   89.34x = 9,068.51
5. Step 5: Solve for x
   x = 9,068.51/89.34
6. Step 6: Final answer
   x = 101.51