Finding the Fourth Proportional to 10,443.34, 15,647.41 and 5,171.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,443.34 : 15,647.41 = 5,171.32 : x
2. Step 2: Convert to fraction form
   10,443.34/15,647.41 = 5,171.32/x
3. Step 3: Cross multiply
   10,443.34x = 15,647.41 × 5,171.32
4. Step 4: Simplify right side
   10,443.34x = 80,917,764.28
5. Step 5: Solve for x
   x = 80,917,764.28/10,443.34
6. Step 6: Final answer
   x = 7,748.26