Finding the Fourth Proportional to 10,904, 14,949.22 and 10,707.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,904 : 14,949.22 = 10,707.20 : x
2. Step 2: Convert to fraction form
   10,904/14,949.22 = 10,707.20/x
3. Step 3: Cross multiply
   10,904x = 14,949.22 × 10,707.20
4. Step 4: Simplify right side
   10,904x = 160,064,288.38
5. Step 5: Solve for x
   x = 160,064,288.38/10,904
6. Step 6: Final answer
   x = 14,679.41