Finding the Fourth Proportional to 10,147.69, 14,003.77 and 5,671.44

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.69 : 14,003.77 = 5,671.44 : x
2. Step 2: Convert to fraction form
   10,147.69/14,003.77 = 5,671.44/x
3. Step 3: Cross multiply
   10,147.69x = 14,003.77 × 5,671.44
4. Step 4: Simplify right side
   10,147.69x = 79,421,541.33
5. Step 5: Solve for x
   x = 79,421,541.33/10,147.69
6. Step 6: Final answer
   x = 7,826.56