Finding the Fourth Proportional to 12,103.29, 16,661.07 and 10,500.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,103.29 : 16,661.07 = 10,500.50 : x
2. Step 2: Convert to fraction form
   12,103.29/16,661.07 = 10,500.50/x
3. Step 3: Cross multiply
   12,103.29x = 16,661.07 × 10,500.50
4. Step 4: Simplify right side
   12,103.29x = 174,949,607.19
5. Step 5: Solve for x
   x = 174,949,607.19/12,103.29
6. Step 6: Final answer
   x = 14,454.71