Finding the Fourth Proportional to 10,627.32, 15,930.78 and 5,079.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,627.32 : 15,930.78 = 5,079.18 : x
2. Step 2: Convert to fraction form
   10,627.32/15,930.78 = 5,079.18/x
3. Step 3: Cross multiply
   10,627.32x = 15,930.78 × 5,079.18
4. Step 4: Simplify right side
   10,627.32x = 80,915,299.16
5. Step 5: Solve for x
   x = 80,915,299.16/10,627.32
6. Step 6: Final answer
   x = 7,613.90