Finding the Fourth Proportional to 22,774.15, 34,150.28 and 12,910.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,774.15 : 34,150.28 = 12,910.78 : x
2. Step 2: Convert to fraction form
   22,774.15/34,150.28 = 12,910.78/x
3. Step 3: Cross multiply
   22,774.15x = 34,150.28 × 12,910.78
4. Step 4: Simplify right side
   22,774.15x = 440,906,752.02
5. Step 5: Solve for x
   x = 440,906,752.02/22,774.15
6. Step 6: Final answer
   x = 19,359.97