Finding the Fourth Proportional to 10,462.29, 15,689.56 and 3,440.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,462.29 : 15,689.56 = 3,440.25 : x
2. Step 2: Convert to fraction form
   10,462.29/15,689.56 = 3,440.25/x
3. Step 3: Cross multiply
   10,462.29x = 15,689.56 × 3,440.25
4. Step 4: Simplify right side
   10,462.29x = 53,976,066.64
5. Step 5: Solve for x
   x = 53,976,066.64/10,462.29
6. Step 6: Final answer
   x = 5,159.11