Finding the Fourth Proportional to 9,354.18, 14,028.20 and 3,112.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.18 : 14,028.20 = 3,112.48 : x
2. Step 2: Convert to fraction form
   9,354.18/14,028.20 = 3,112.48/x
3. Step 3: Cross multiply
   9,354.18x = 14,028.20 × 3,112.48
4. Step 4: Simplify right side
   9,354.18x = 43,662,491.94
5. Step 5: Solve for x
   x = 43,662,491.94/9,354.18
6. Step 6: Final answer
   x = 4,667.70