Finding the Fourth Proportional to 10,196.28, 14,075.10 and 7,214.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,196.28 : 14,075.10 = 7,214.40 : x
2. Step 2: Convert to fraction form
   10,196.28/14,075.10 = 7,214.40/x
3. Step 3: Cross multiply
   10,196.28x = 14,075.10 × 7,214.40
4. Step 4: Simplify right side
   10,196.28x = 101,543,401.44
5. Step 5: Solve for x
   x = 101,543,401.44/10,196.28
6. Step 6: Final answer
   x = 9,958.87