Finding the Fourth Proportional to 10,669.98, 16,021.41 and 9,510.87

Step by Step Solution

1. Step 1: Write the proportion equation
   10,669.98 : 16,021.41 = 9,510.87 : x
2. Step 2: Convert to fraction form
   10,669.98/16,021.41 = 9,510.87/x
3. Step 3: Cross multiply
   10,669.98x = 16,021.41 × 9,510.87
4. Step 4: Simplify right side
   10,669.98x = 152,377,547.73
5. Step 5: Solve for x
   x = 152,377,547.73/10,669.98
6. Step 6: Final answer
   x = 14,280.96