Finding the Fourth Proportional to 22,755.56, 31,401.54 and 12,684.83

Step by Step Solution

1. Step 1: Write the proportion equation
   22,755.56 : 31,401.54 = 12,684.83 : x
2. Step 2: Convert to fraction form
   22,755.56/31,401.54 = 12,684.83/x
3. Step 3: Cross multiply
   22,755.56x = 31,401.54 × 12,684.83
4. Step 4: Simplify right side
   22,755.56x = 398,323,039.63
5. Step 5: Solve for x
   x = 398,323,039.63/22,755.56
6. Step 6: Final answer
   x = 17,504.43