Finding the Fourth Proportional to 10,838.53, 16,111.53 and 10,519.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,838.53 : 16,111.53 = 10,519.29 : x
2. Step 2: Convert to fraction form
   10,838.53/16,111.53 = 10,519.29/x
3. Step 3: Cross multiply
   10,838.53x = 16,111.53 × 10,519.29
4. Step 4: Simplify right side
   10,838.53x = 169,481,775.86
5. Step 5: Solve for x
   x = 169,481,775.86/10,838.53
6. Step 6: Final answer
   x = 15,636.97