Finding the Fourth Proportional to 10,681.62, 14,723.01 and 7,143.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,681.62 : 14,723.01 = 7,143.54 : x
2. Step 2: Convert to fraction form
   10,681.62/14,723.01 = 7,143.54/x
3. Step 3: Cross multiply
   10,681.62x = 14,723.01 × 7,143.54
4. Step 4: Simplify right side
   10,681.62x = 105,174,410.86
5. Step 5: Solve for x
   x = 105,174,410.86/10,681.62
6. Step 6: Final answer
   x = 9,846.30