Finding the Fourth Proportional to 22,358.76, 30,853.84 and 13,401.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,358.76 : 30,853.84 = 13,401.78 : x
2. Step 2: Convert to fraction form
   22,358.76/30,853.84 = 13,401.78/x
3. Step 3: Cross multiply
   22,358.76x = 30,853.84 × 13,401.78
4. Step 4: Simplify right side
   22,358.76x = 413,496,308.83
5. Step 5: Solve for x
   x = 413,496,308.83/22,358.76
6. Step 6: Final answer
   x = 18,493.70