Finding the Fourth Proportional to 104.76, 144.59 and 71.51

Step by Step Solution

1. Step 1: Write the proportion equation
   104.76 : 144.59 = 71.51 : x
2. Step 2: Convert to fraction form
   104.76/144.59 = 71.51/x
3. Step 3: Cross multiply
   104.76x = 144.59 × 71.51
4. Step 4: Simplify right side
   104.76x = 10,338.55
5. Step 5: Solve for x
   x = 10,338.55/104.76
6. Step 6: Final answer
   x = 98.69