Finding the Fourth Proportional to 10,248.21, 14,142.25 and 5,771.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,248.21 : 14,142.25 = 5,771.87 : x
2. Step 2: Convert to fraction form
   10,248.21/14,142.25 = 5,771.87/x
3. Step 3: Cross multiply
   10,248.21x = 14,142.25 × 5,771.87
4. Step 4: Simplify right side
   10,248.21x = 81,627,218.04
5. Step 5: Solve for x
   x = 81,627,218.04/10,248.21
6. Step 6: Final answer
   x = 7,965.02