Finding the Fourth Proportional to 72.47, 108.69 and 35.89

Step by Step Solution

1. Step 1: Write the proportion equation
   72.47 : 108.69 = 35.89 : x
2. Step 2: Convert to fraction form
   72.47/108.69 = 35.89/x
3. Step 3: Cross multiply
   72.47x = 108.69 × 35.89
4. Step 4: Simplify right side
   72.47x = 3,900.48
5. Step 5: Solve for x
   x = 3,900.48/72.47
6. Step 6: Final answer
   x = 53.82