Finding the Fourth Proportional to 10,839.72, 14,958.96 and 5,871.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,839.72 : 14,958.96 = 5,871.72 : x
2. Step 2: Convert to fraction form
   10,839.72/14,958.96 = 5,871.72/x
3. Step 3: Cross multiply
   10,839.72x = 14,958.96 × 5,871.72
4. Step 4: Simplify right side
   10,839.72x = 87,834,824.61
5. Step 5: Solve for x
   x = 87,834,824.61/10,839.72
6. Step 6: Final answer
   x = 8,103.05