Finding the Fourth Proportional to 10,570.28, 15,851.34 and 3,173

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.28 : 15,851.34 = 3,173 : x
2. Step 2: Convert to fraction form
   10,570.28/15,851.34 = 3,173/x
3. Step 3: Cross multiply
   10,570.28x = 15,851.34 × 3,173
4. Step 4: Simplify right side
   10,570.28x = 50,296,301.82
5. Step 5: Solve for x
   x = 50,296,301.82/10,570.28
6. Step 6: Final answer
   x = 4,758.28