Finding the Fourth Proportional to 10,898.91, 16,348.52 and 3,107.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,898.91 : 16,348.52 = 3,107.72 : x
2. Step 2: Convert to fraction form
   10,898.91/16,348.52 = 3,107.72/x
3. Step 3: Cross multiply
   10,898.91x = 16,348.52 × 3,107.72
4. Step 4: Simplify right side
   10,898.91x = 50,806,647.91
5. Step 5: Solve for x
   x = 50,806,647.91/10,898.91
6. Step 6: Final answer
   x = 4,661.63