Finding the Fourth Proportional to 22,831.25, 31,507.74 and 12,760.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,831.25 : 31,507.74 = 12,760.79 : x
2. Step 2: Convert to fraction form
   22,831.25/31,507.74 = 12,760.79/x
3. Step 3: Cross multiply
   22,831.25x = 31,507.74 × 12,760.79
4. Step 4: Simplify right side
   22,831.25x = 402,063,495.98
5. Step 5: Solve for x
   x = 402,063,495.98/22,831.25
6. Step 6: Final answer
   x = 17,610.23