Finding the Fourth Proportional to 10,648.32, 15,951.34 and 5,018.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,648.32 : 15,951.34 = 5,018.28 : x
2. Step 2: Convert to fraction form
   10,648.32/15,951.34 = 5,018.28/x
3. Step 3: Cross multiply
   10,648.32x = 15,951.34 × 5,018.28
4. Step 4: Simplify right side
   10,648.32x = 80,048,290.50
5. Step 5: Solve for x
   x = 80,048,290.50/10,648.32
6. Step 6: Final answer
   x = 7,517.46