Finding the Fourth Proportional to 72.76, 109.23 and 48.82

Step by Step Solution

1. Step 1: Write the proportion equation
   72.76 : 109.23 = 48.82 : x
2. Step 2: Convert to fraction form
   72.76/109.23 = 48.82/x
3. Step 3: Cross multiply
   72.76x = 109.23 × 48.82
4. Step 4: Simplify right side
   72.76x = 5,332.61
5. Step 5: Solve for x
   x = 5,332.61/72.76
6. Step 6: Final answer
   x = 73.29