Finding the Fourth Proportional to 22,254.96, 30,711.78 and 12,823.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,254.96 : 30,711.78 = 12,823.50 : x
2. Step 2: Convert to fraction form
   22,254.96/30,711.78 = 12,823.50/x
3. Step 3: Cross multiply
   22,254.96x = 30,711.78 × 12,823.50
4. Step 4: Simplify right side
   22,254.96x = 393,832,510.83
5. Step 5: Solve for x
   x = 393,832,510.83/22,254.96
6. Step 6: Final answer
   x = 17,696.39