Finding the Fourth Proportional to 10,887.25, 16,333.23 and 3,390.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,887.25 : 16,333.23 = 3,390.67 : x
2. Step 2: Convert to fraction form
   10,887.25/16,333.23 = 3,390.67/x
3. Step 3: Cross multiply
   10,887.25x = 16,333.23 × 3,390.67
4. Step 4: Simplify right side
   10,887.25x = 55,380,592.96
5. Step 5: Solve for x
   x = 55,380,592.96/10,887.25
6. Step 6: Final answer
   x = 5,086.74