Finding the Fourth Proportional to 10,507.98, 14,496.42 and 6,918.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507.98 : 14,496.42 = 6,918.31 : x
2. Step 2: Convert to fraction form
   10,507.98/14,496.42 = 6,918.31/x
3. Step 3: Cross multiply
   10,507.98x = 14,496.42 × 6,918.31
4. Step 4: Simplify right side
   10,507.98x = 100,290,727.45
5. Step 5: Solve for x
   x = 100,290,727.45/10,507.98
6. Step 6: Final answer
   x = 9,544.24