Finding the Fourth Proportional to 22,395.88, 30,910.98 and 13,443.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,395.88 : 30,910.98 = 13,443.76 : x
2. Step 2: Convert to fraction form
   22,395.88/30,910.98 = 13,443.76/x
3. Step 3: Cross multiply
   22,395.88x = 30,910.98 × 13,443.76
4. Step 4: Simplify right side
   22,395.88x = 415,559,796.48
5. Step 5: Solve for x
   x = 415,559,796.48/22,395.88
6. Step 6: Final answer
   x = 18,555.19