Finding the Fourth Proportional to 9,406.40, 14,109.46 and 2,290.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.40 : 14,109.46 = 2,290.72 : x
2. Step 2: Convert to fraction form
   9,406.40/14,109.46 = 2,290.72/x
3. Step 3: Cross multiply
   9,406.40x = 14,109.46 × 2,290.72
4. Step 4: Simplify right side
   9,406.40x = 32,320,822.21
5. Step 5: Solve for x
   x = 32,320,822.21/9,406.40
6. Step 6: Final answer
   x = 3,436.05