Finding the Fourth Proportional to 13,171.34, 18,176.28 and 7,873.22

Step by Step Solution

1. Step 1: Write the proportion equation
   13,171.34 : 18,176.28 = 7,873.22 : x
2. Step 2: Convert to fraction form
   13,171.34/18,176.28 = 7,873.22/x
3. Step 3: Cross multiply
   13,171.34x = 18,176.28 × 7,873.22
4. Step 4: Simplify right side
   13,171.34x = 143,105,851.22
5. Step 5: Solve for x
   x = 143,105,851.22/13,171.34
6. Step 6: Final answer
   x = 10,864.94