Finding the Fourth Proportional to 104.72, 143.56 and 103.52

Step by Step Solution

1. Step 1: Write the proportion equation
   104.72 : 143.56 = 103.52 : x
2. Step 2: Convert to fraction form
   104.72/143.56 = 103.52/x
3. Step 3: Cross multiply
   104.72x = 143.56 × 103.52
4. Step 4: Simplify right side
   104.72x = 14,861.33
5. Step 5: Solve for x
   x = 14,861.33/104.72
6. Step 6: Final answer
   x = 141.91