Finding the Fourth Proportional to 10,936.05, 16,404.14 and 3,916.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.05 : 16,404.14 = 3,916.32 : x
2. Step 2: Convert to fraction form
   10,936.05/16,404.14 = 3,916.32/x
3. Step 3: Cross multiply
   10,936.05x = 16,404.14 × 3,916.32
4. Step 4: Simplify right side
   10,936.05x = 64,243,861.56
5. Step 5: Solve for x
   x = 64,243,861.56/10,936.05
6. Step 6: Final answer
   x = 5,874.50