Finding the Fourth Proportional to 72.86, 109.24 and 29.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72.86 : 109.24 = 29.48 : x
2. Step 2: Convert to fraction form
   72.86/109.24 = 29.48/x
3. Step 3: Cross multiply
   72.86x = 109.24 × 29.48
4. Step 4: Simplify right side
   72.86x = 3,220.59
5. Step 5: Solve for x
   x = 3,220.59/72.86
6. Step 6: Final answer
   x = 44.20