Finding the Fourth Proportional to 22,269.94, 30,731.61 and 13,322.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,269.94 : 30,731.61 = 13,322.39 : x
2. Step 2: Convert to fraction form
   22,269.94/30,731.61 = 13,322.39/x
3. Step 3: Cross multiply
   22,269.94x = 30,731.61 × 13,322.39
4. Step 4: Simplify right side
   22,269.94x = 409,418,390.05
5. Step 5: Solve for x
   x = 409,418,390.05/22,269.94
6. Step 6: Final answer
   x = 18,384.35