Finding the Fourth Proportional to 9,279.96, 13,911.72 and 3,435.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,279.96 : 13,911.72 = 3,435.18 : x
2. Step 2: Convert to fraction form
   9,279.96/13,911.72 = 3,435.18/x
3. Step 3: Cross multiply
   9,279.96x = 13,911.72 × 3,435.18
4. Step 4: Simplify right side
   9,279.96x = 47,789,262.31
5. Step 5: Solve for x
   x = 47,789,262.31/9,279.96
6. Step 6: Final answer
   x = 5,149.73