Finding the Fourth Proportional to 10,287.98, 14,196.72 and 5,811.92

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.98 : 14,196.72 = 5,811.92 : x
2. Step 2: Convert to fraction form
   10,287.98/14,196.72 = 5,811.92/x
3. Step 3: Cross multiply
   10,287.98x = 14,196.72 × 5,811.92
4. Step 4: Simplify right side
   10,287.98x = 82,510,200.90
5. Step 5: Solve for x
   x = 82,510,200.90/10,287.98
6. Step 6: Final answer
   x = 8,020.06