Finding the Fourth Proportional to 10,287.14, 14,196.18 and 5,571.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.14 : 14,196.18 = 5,571.32 : x
2. Step 2: Convert to fraction form
   10,287.14/14,196.18 = 5,571.32/x
3. Step 3: Cross multiply
   10,287.14x = 14,196.18 × 5,571.32
4. Step 4: Simplify right side
   10,287.14x = 79,091,461.56
5. Step 5: Solve for x
   x = 79,091,461.56/10,287.14
6. Step 6: Final answer
   x = 7,688.38