Finding the Fourth Proportional to 21,886.84, 30,201.59 and 12,325.21

Step by Step Solution

1. Step 1: Write the proportion equation
   21,886.84 : 30,201.59 = 12,325.21 : x
2. Step 2: Convert to fraction form
   21,886.84/30,201.59 = 12,325.21/x
3. Step 3: Cross multiply
   21,886.84x = 30,201.59 × 12,325.21
4. Step 4: Simplify right side
   21,886.84x = 372,240,894.39
5. Step 5: Solve for x
   x = 372,240,894.39/21,886.84
6. Step 6: Final answer
   x = 17,007.52