Finding the Fourth Proportional to 10,672.89, 16,011.71 and 3,278.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,672.89 : 16,011.71 = 3,278.10 : x
2. Step 2: Convert to fraction form
   10,672.89/16,011.71 = 3,278.10/x
3. Step 3: Cross multiply
   10,672.89x = 16,011.71 × 3,278.10
4. Step 4: Simplify right side
   10,672.89x = 52,487,906.49
5. Step 5: Solve for x
   x = 52,487,906.49/10,672.89
6. Step 6: Final answer
   x = 4,917.87