Finding the Fourth Proportional to 9,800.24, 13,519.82 and 7,405.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,800.24 : 13,519.82 = 7,405.88 : x
2. Step 2: Convert to fraction form
   9,800.24/13,519.82 = 7,405.88/x
3. Step 3: Cross multiply
   9,800.24x = 13,519.82 × 7,405.88
4. Step 4: Simplify right side
   9,800.24x = 100,126,164.54
5. Step 5: Solve for x
   x = 100,126,164.54/9,800.24
6. Step 6: Final answer
   x = 10,216.71