Finding the Fourth Proportional to 19,783.55, 27,301.30 and 10,831.61

Step by Step Solution

1. Step 1: Write the proportion equation
   19,783.55 : 27,301.30 = 10,831.61 : x
2. Step 2: Convert to fraction form
   19,783.55/27,301.30 = 10,831.61/x
3. Step 3: Cross multiply
   19,783.55x = 27,301.30 × 10,831.61
4. Step 4: Simplify right side
   19,783.55x = 295,717,075.27
5. Step 5: Solve for x
   x = 295,717,075.27/19,783.55
6. Step 6: Final answer
   x = 14,947.62