Finding the Fourth Proportional to 10,124.46, 15,172.61 and 5,183.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,124.46 : 15,172.61 = 5,183.69 : x
2. Step 2: Convert to fraction form
   10,124.46/15,172.61 = 5,183.69/x
3. Step 3: Cross multiply
   10,124.46x = 15,172.61 × 5,183.69
4. Step 4: Simplify right side
   10,124.46x = 78,650,004.95
5. Step 5: Solve for x
   x = 78,650,004.95/10,124.46
6. Step 6: Final answer
   x = 7,768.32