Finding the Fourth Proportional to 10,343.98, 15,509.78 and 7,016.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,343.98 : 15,509.78 = 7,016.32 : x
2. Step 2: Convert to fraction form
   10,343.98/15,509.78 = 7,016.32/x
3. Step 3: Cross multiply
   10,343.98x = 15,509.78 × 7,016.32
4. Step 4: Simplify right side
   10,343.98x = 108,821,579.61
5. Step 5: Solve for x
   x = 108,821,579.61/10,343.98
6. Step 6: Final answer
   x = 10,520.28