Finding the Fourth Proportional to 10,887.12, 16,337.94 and 3,961.62

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887.12 : 16,337.94 = 3,961.62 : x
2. Step 2: Convert to fraction form
   10,887.12/16,337.94 = 3,961.62/x
3. Step 3: Cross multiply
   10,887.12x = 16,337.94 × 3,961.62
4. Step 4: Simplify right side
   10,887.12x = 64,724,709.86
5. Step 5: Solve for x
   x = 64,724,709.86/10,887.12
6. Step 6: Final answer
   x = 5,945.07