Finding the Fourth Proportional to 10,479.06, 15,720.15 and 3,459.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,479.06 : 15,720.15 = 3,459.82 : x
2. Step 2: Convert to fraction form
   10,479.06/15,720.15 = 3,459.82/x
3. Step 3: Cross multiply
   10,479.06x = 15,720.15 × 3,459.82
4. Step 4: Simplify right side
   10,479.06x = 54,388,825.09
5. Step 5: Solve for x
   x = 54,388,825.09/10,479.06
6. Step 6: Final answer
   x = 5,190.24