Finding the Fourth Proportional to 10,896.14, 15,010.76 and 10,242.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,896.14 : 15,010.76 = 10,242.10 : x
2. Step 2: Convert to fraction form
   10,896.14/15,010.76 = 10,242.10/x
3. Step 3: Cross multiply
   10,896.14x = 15,010.76 × 10,242.10
4. Step 4: Simplify right side
   10,896.14x = 153,741,705.00
5. Step 5: Solve for x
   x = 153,741,705.00/10,896.14
6. Step 6: Final answer
   x = 14,109.74