Finding the Fourth Proportional to 72.37, 108.57 and 29.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72.37 : 108.57 = 29.05 : x
2. Step 2: Convert to fraction form
   72.37/108.57 = 29.05/x
3. Step 3: Cross multiply
   72.37x = 108.57 × 29.05
4. Step 4: Simplify right side
   72.37x = 3,153.96
5. Step 5: Solve for x
   x = 3,153.96/72.37
6. Step 6: Final answer
   x = 43.58