Finding the Fourth Proportional to 22,789.71, 31,440.45 and 13,835.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,789.71 : 31,440.45 = 13,835.79 : x
2. Step 2: Convert to fraction form
   22,789.71/31,440.45 = 13,835.79/x
3. Step 3: Cross multiply
   22,789.71x = 31,440.45 × 13,835.79
4. Step 4: Simplify right side
   22,789.71x = 435,003,463.71
5. Step 5: Solve for x
   x = 435,003,463.71/22,789.71
6. Step 6: Final answer
   x = 19,087.71