Finding the Fourth Proportional to 72.47, 108.79 and 35.94

Step by Step Solution

1. Step 1: Write the proportion equation
   72.47 : 108.79 = 35.94 : x
2. Step 2: Convert to fraction form
   72.47/108.79 = 35.94/x
3. Step 3: Cross multiply
   72.47x = 108.79 × 35.94
4. Step 4: Simplify right side
   72.47x = 3,909.91
5. Step 5: Solve for x
   x = 3,909.91/72.47
6. Step 6: Final answer
   x = 53.95