Finding the Fourth Proportional to 10,147.34, 14,003.28 and 5,671.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.34 : 14,003.28 = 5,671.09 : x
2. Step 2: Convert to fraction form
   10,147.34/14,003.28 = 5,671.09/x
3. Step 3: Cross multiply
   10,147.34x = 14,003.28 × 5,671.09
4. Step 4: Simplify right side
   10,147.34x = 79,413,878.68
5. Step 5: Solve for x
   x = 79,413,878.68/10,147.34
6. Step 6: Final answer
   x = 7,826.08