Finding the Fourth Proportional to 72.82, 100.37 and 54.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72.82 : 100.37 = 54.37 : x
2. Step 2: Convert to fraction form
   72.82/100.37 = 54.37/x
3. Step 3: Cross multiply
   72.82x = 100.37 × 54.37
4. Step 4: Simplify right side
   72.82x = 5,457.12
5. Step 5: Solve for x
   x = 5,457.12/72.82
6. Step 6: Final answer
   x = 74.94