Finding the Fourth Proportional to 10,892.34, 16,339.50 and 3,871.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,892.34 : 16,339.50 = 3,871.68 : x
2. Step 2: Convert to fraction form
   10,892.34/16,339.50 = 3,871.68/x
3. Step 3: Cross multiply
   10,892.34x = 16,339.50 × 3,871.68
4. Step 4: Simplify right side
   10,892.34x = 63,261,315.36
5. Step 5: Solve for x
   x = 63,261,315.36/10,892.34
6. Step 6: Final answer
   x = 5,807.87