Finding the Fourth Proportional to 10,287.68, 14,196.98 and 5,571.95

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.68 : 14,196.98 = 5,571.95 : x
2. Step 2: Convert to fraction form
   10,287.68/14,196.98 = 5,571.95/x
3. Step 3: Cross multiply
   10,287.68x = 14,196.98 × 5,571.95
4. Step 4: Simplify right side
   10,287.68x = 79,104,834.85
5. Step 5: Solve for x
   x = 79,104,834.85/10,287.68
6. Step 6: Final answer
   x = 7,689.28