Finding the Fourth Proportional to 10,821.57, 14,931.18 and 7,463.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,821.57 : 14,931.18 = 7,463.31 : x
2. Step 2: Convert to fraction form
   10,821.57/14,931.18 = 7,463.31/x
3. Step 3: Cross multiply
   10,821.57x = 14,931.18 × 7,463.31
4. Step 4: Simplify right side
   10,821.57x = 111,435,997.00
5. Step 5: Solve for x
   x = 111,435,997.00/10,821.57
6. Step 6: Final answer
   x = 10,297.58