Finding the Fourth Proportional to 73.05, 100.83 and 51.18

Step by Step Solution

1. Step 1: Write the proportion equation
   73.05 : 100.83 = 51.18 : x
2. Step 2: Convert to fraction form
   73.05/100.83 = 51.18/x
3. Step 3: Cross multiply
   73.05x = 100.83 × 51.18
4. Step 4: Simplify right side
   73.05x = 5,160.29
5. Step 5: Solve for x
   x = 5,160.29/73.05
6. Step 6: Final answer
   x = 70.64