Finding the Fourth Proportional to 10,900.50, 16,260.25 and 10,536.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,900.50 : 16,260.25 = 10,536.06 : x
2. Step 2: Convert to fraction form
   10,900.50/16,260.25 = 10,536.06/x
3. Step 3: Cross multiply
   10,900.50x = 16,260.25 × 10,536.06
4. Step 4: Simplify right side
   10,900.50x = 171,318,969.62
5. Step 5: Solve for x
   x = 171,318,969.62/10,900.50
6. Step 6: Final answer
   x = 15,716.62