Finding the Fourth Proportional to 22,322.75, 30,805.40 and 12,386.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,322.75 : 30,805.40 = 12,386.75 : x
2. Step 2: Convert to fraction form
   22,322.75/30,805.40 = 12,386.75/x
3. Step 3: Cross multiply
   22,322.75x = 30,805.40 × 12,386.75
4. Step 4: Simplify right side
   22,322.75x = 381,578,788.45
5. Step 5: Solve for x
   x = 381,578,788.45/22,322.75
6. Step 6: Final answer
   x = 17,093.72