Finding the Fourth Proportional to 73.00, 100.71 and 51.18

Step by Step Solution

1. Step 1: Write the proportion equation
   73.00 : 100.71 = 51.18 : x
2. Step 2: Convert to fraction form
   73.00/100.71 = 51.18/x
3. Step 3: Cross multiply
   73.00x = 100.71 × 51.18
4. Step 4: Simplify right side
   73.00x = 5,154.15
5. Step 5: Solve for x
   x = 5,154.15/73.00
6. Step 6: Final answer
   x = 70.61