Finding the Fourth Proportional to 12,973.10, 19,452.45 and 5,173.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,973.10 : 19,452.45 = 5,173.10 : x
2. Step 2: Convert to fraction form
   12,973.10/19,452.45 = 5,173.10/x
3. Step 3: Cross multiply
   12,973.10x = 19,452.45 × 5,173.10
4. Step 4: Simplify right side
   12,973.10x = 100,629,469.10
5. Step 5: Solve for x
   x = 100,629,469.10/12,973.10
6. Step 6: Final answer
   x = 7,756.78