Finding the Fourth Proportional to 10,963.72, 15,028.45 and 10,816.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,963.72 : 15,028.45 = 10,816.03 : x
2. Step 2: Convert to fraction form
   10,963.72/15,028.45 = 10,816.03/x
3. Step 3: Cross multiply
   10,963.72x = 15,028.45 × 10,816.03
4. Step 4: Simplify right side
   10,963.72x = 162,548,166.05
5. Step 5: Solve for x
   x = 162,548,166.05/10,963.72
6. Step 6: Final answer
   x = 14,826.00