Finding the Fourth Proportional to 72.76, 109.08 and 35.68

Step by Step Solution

1. Step 1: Write the proportion equation
   72.76 : 109.08 = 35.68 : x
2. Step 2: Convert to fraction form
   72.76/109.08 = 35.68/x
3. Step 3: Cross multiply
   72.76x = 109.08 × 35.68
4. Step 4: Simplify right side
   72.76x = 3,892.59
5. Step 5: Solve for x
   x = 3,892.59/72.76
6. Step 6: Final answer
   x = 53.50