Finding the Fourth Proportional to 22,436.85, 30,963.48 and 12,877.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,436.85 : 30,963.48 = 12,877.56 : x
2. Step 2: Convert to fraction form
   22,436.85/30,963.48 = 12,877.56/x
3. Step 3: Cross multiply
   22,436.85x = 30,963.48 × 12,877.56
4. Step 4: Simplify right side
   22,436.85x = 398,734,071.51
5. Step 5: Solve for x
   x = 398,734,071.51/22,436.85
6. Step 6: Final answer
   x = 17,771.39