Finding the Fourth Proportional to 21,901.02, 30,225 and 12,469.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,901.02 : 30,225 = 12,469.62 : x
2. Step 2: Convert to fraction form
   21,901.02/30,225 = 12,469.62/x
3. Step 3: Cross multiply
   21,901.02x = 30,225 × 12,469.62
4. Step 4: Simplify right side
   21,901.02x = 376,894,264.50
5. Step 5: Solve for x
   x = 376,894,264.50/21,901.02
6. Step 6: Final answer
   x = 17,208.98