Finding the Fourth Proportional to 9,426.78, 14,126.85 and 7,443.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.78 : 14,126.85 = 7,443.68 : x
2. Step 2: Convert to fraction form
   9,426.78/14,126.85 = 7,443.68/x
3. Step 3: Cross multiply
   9,426.78x = 14,126.85 × 7,443.68
4. Step 4: Simplify right side
   9,426.78x = 105,155,680.17
5. Step 5: Solve for x
   x = 105,155,680.17/9,426.78
6. Step 6: Final answer
   x = 11,154.99