Finding the Fourth Proportional to 10,705.25, 14,778.43 and 7,126.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.25 : 14,778.43 = 7,126.18 : x
2. Step 2: Convert to fraction form
   10,705.25/14,778.43 = 7,126.18/x
3. Step 3: Cross multiply
   10,705.25x = 14,778.43 × 7,126.18
4. Step 4: Simplify right side
   10,705.25x = 105,313,697.54
5. Step 5: Solve for x
   x = 105,313,697.54/10,705.25
6. Step 6: Final answer
   x = 9,837.57