Finding the Fourth Proportional to 10,937.30, 16,414.05 and 8,021.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,937.30 : 16,414.05 = 8,021.30 : x
2. Step 2: Convert to fraction form
   10,937.30/16,414.05 = 8,021.30/x
3. Step 3: Cross multiply
   10,937.30x = 16,414.05 × 8,021.30
4. Step 4: Simplify right side
   10,937.30x = 131,662,019.27
5. Step 5: Solve for x
   x = 131,662,019.27/10,937.30
6. Step 6: Final answer
   x = 12,037.89