Finding the Fourth Proportional to 10,147.88, 14,003.42 and 5,671.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,147.88 : 14,003.42 = 5,671.96 : x
2. Step 2: Convert to fraction form
   10,147.88/14,003.42 = 5,671.96/x
3. Step 3: Cross multiply
   10,147.88x = 14,003.42 × 5,671.96
4. Step 4: Simplify right side
   10,147.88x = 79,426,774.73
5. Step 5: Solve for x
   x = 79,426,774.73/10,147.88
6. Step 6: Final answer
   x = 7,826.93