Finding the Fourth Proportional to 12,109.48, 16,710.66 and 7,401.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.48 : 16,710.66 = 7,401.64 : x
2. Step 2: Convert to fraction form
   12,109.48/16,710.66 = 7,401.64/x
3. Step 3: Cross multiply
   12,109.48x = 16,710.66 × 7,401.64
4. Step 4: Simplify right side
   12,109.48x = 123,686,289.48
5. Step 5: Solve for x
   x = 123,686,289.48/12,109.48
6. Step 6: Final answer
   x = 10,214.01