Finding the Fourth Proportional to 22,308.52, 30,784.60 and 12,876.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,308.52 : 30,784.60 = 12,876.52 : x
2. Step 2: Convert to fraction form
   22,308.52/30,784.60 = 12,876.52/x
3. Step 3: Cross multiply
   22,308.52x = 30,784.60 × 12,876.52
4. Step 4: Simplify right side
   22,308.52x = 396,398,517.59
5. Step 5: Solve for x
   x = 396,398,517.59/22,308.52
6. Step 6: Final answer
   x = 17,768.93