Finding the Fourth Proportional to 10,248.27, 14,143.34 and 5,711.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,248.27 : 14,143.34 = 5,711.25 : x
2. Step 2: Convert to fraction form
   10,248.27/14,143.34 = 5,711.25/x
3. Step 3: Cross multiply
   10,248.27x = 14,143.34 × 5,711.25
4. Step 4: Simplify right side
   10,248.27x = 80,776,150.58
5. Step 5: Solve for x
   x = 80,776,150.58/10,248.27
6. Step 6: Final answer
   x = 7,881.93