Finding the Fourth Proportional to 22,355.50, 30,851.40 and 12,284.91

Step by Step Solution

1. Step 1: Write the proportion equation
   22,355.50 : 30,851.40 = 12,284.91 : x
2. Step 2: Convert to fraction form
   22,355.50/30,851.40 = 12,284.91/x
3. Step 3: Cross multiply
   22,355.50x = 30,851.40 × 12,284.91
4. Step 4: Simplify right side
   22,355.50x = 379,006,672.37
5. Step 5: Solve for x
   x = 379,006,672.37/22,355.50
6. Step 6: Final answer
   x = 16,953.62