Finding the Fourth Proportional to 11,269.80, 16,900.56 and 3,872.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,269.80 : 16,900.56 = 3,872.16 : x
2. Step 2: Convert to fraction form
   11,269.80/16,900.56 = 3,872.16/x
3. Step 3: Cross multiply
   11,269.80x = 16,900.56 × 3,872.16
4. Step 4: Simplify right side
   11,269.80x = 65,441,672.41
5. Step 5: Solve for x
   x = 65,441,672.41/11,269.80
6. Step 6: Final answer
   x = 5,806.82