Finding the Fourth Proportional to 9,405.86, 14,109.49 and 3,165.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,405.86 : 14,109.49 = 3,165.89 : x
2. Step 2: Convert to fraction form
   9,405.86/14,109.49 = 3,165.89/x
3. Step 3: Cross multiply
   9,405.86x = 14,109.49 × 3,165.89
4. Step 4: Simplify right side
   9,405.86x = 44,669,026.71
5. Step 5: Solve for x
   x = 44,669,026.71/9,405.86
6. Step 6: Final answer
   x = 4,749.07