Finding the Fourth Proportional to 72.49, 108.76 and 29.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72.49 : 108.76 = 29.18 : x
2. Step 2: Convert to fraction form
   72.49/108.76 = 29.18/x
3. Step 3: Cross multiply
   72.49x = 108.76 × 29.18
4. Step 4: Simplify right side
   72.49x = 3,173.00
5. Step 5: Solve for x
   x = 3,173.00/72.49
6. Step 6: Final answer
   x = 43.77