Finding the Fourth Proportional to 9,900.81, 14,724.96 and 9,651.43

Step by Step Solution

1. Step 1: Write the proportion equation
   9,900.81 : 14,724.96 = 9,651.43 : x
2. Step 2: Convert to fraction form
   9,900.81/14,724.96 = 9,651.43/x
3. Step 3: Cross multiply
   9,900.81x = 14,724.96 × 9,651.43
4. Step 4: Simplify right side
   9,900.81x = 142,116,942.93
5. Step 5: Solve for x
   x = 142,116,942.93/9,900.81
6. Step 6: Final answer
   x = 14,354.08