Finding the Fourth Proportional to 10,902.38, 16,356 and 3,976.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,902.38 : 16,356 = 3,976.88 : x
2. Step 2: Convert to fraction form
   10,902.38/16,356 = 3,976.88/x
3. Step 3: Cross multiply
   10,902.38x = 16,356 × 3,976.88
4. Step 4: Simplify right side
   10,902.38x = 65,045,767.50
5. Step 5: Solve for x
   x = 65,045,767.50/10,902.38
6. Step 6: Final answer
   x = 5,966.20