Finding the Fourth Proportional to 14,119.50, 19,485 and 7,831.89

Step by Step Solution

1. Step 1: Write the proportion equation
   14,119.50 : 19,485 = 7,831.89 : x
2. Step 2: Convert to fraction form
   14,119.50/19,485 = 7,831.89/x
3. Step 3: Cross multiply
   14,119.50x = 19,485 × 7,831.89
4. Step 4: Simplify right side
   14,119.50x = 152,604,376.65
5. Step 5: Solve for x
   x = 152,604,376.65/14,119.50
6. Step 6: Final answer
   x = 10,808.06