Finding the Fourth Proportional to 22,030.52, 30,408.51 and 13,419.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,030.52 : 30,408.51 = 13,419.81 : x
2. Step 2: Convert to fraction form
   22,030.52/30,408.51 = 13,419.81/x
3. Step 3: Cross multiply
   22,030.52x = 30,408.51 × 13,419.81
4. Step 4: Simplify right side
   22,030.52x = 408,076,476.91
5. Step 5: Solve for x
   x = 408,076,476.91/22,030.52
6. Step 6: Final answer
   x = 18,523.24