Finding the Fourth Proportional to 72.49, 100.06 and 51.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72.49 : 100.06 = 51.83 : x
2. Step 2: Convert to fraction form
   72.49/100.06 = 51.83/x
3. Step 3: Cross multiply
   72.49x = 100.06 × 51.83
4. Step 4: Simplify right side
   72.49x = 5,186.11
5. Step 5: Solve for x
   x = 5,186.11/72.49
6. Step 6: Final answer
   x = 71.54