Finding the Fourth Proportional to 22,365.37, 30,865.82 and 13,412.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,365.37 : 30,865.82 = 13,412.71 : x
2. Step 2: Convert to fraction form
   22,365.37/30,865.82 = 13,412.71/x
3. Step 3: Cross multiply
   22,365.37x = 30,865.82 × 13,412.71
4. Step 4: Simplify right side
   22,365.37x = 413,994,292.57
5. Step 5: Solve for x
   x = 413,994,292.57/22,365.37
6. Step 6: Final answer
   x = 18,510.50