Finding the Fourth Proportional to 22,307.54, 30,784.46 and 12,876.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,307.54 : 30,784.46 = 12,876.10 : x
2. Step 2: Convert to fraction form
   22,307.54/30,784.46 = 12,876.10/x
3. Step 3: Cross multiply
   22,307.54x = 30,784.46 × 12,876.10
4. Step 4: Simplify right side
   22,307.54x = 396,383,567.10
5. Step 5: Solve for x
   x = 396,383,567.10/22,307.54
6. Step 6: Final answer
   x = 17,769.04