Finding the Fourth Proportional to 10,328.47, 15,489.93 and 4,483.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,328.47 : 15,489.93 = 4,483.69 : x
2. Step 2: Convert to fraction form
   10,328.47/15,489.93 = 4,483.69/x
3. Step 3: Cross multiply
   10,328.47x = 15,489.93 × 4,483.69
4. Step 4: Simplify right side
   10,328.47x = 69,452,022.33
5. Step 5: Solve for x
   x = 69,452,022.33/10,328.47
6. Step 6: Final answer
   x = 6,724.33