Finding the Fourth Proportional to 21,902.04, 30,223.14 and 12,468.72

Step by Step Solution

1. Step 1: Write the proportion equation
   21,902.04 : 30,223.14 = 12,468.72 : x
2. Step 2: Convert to fraction form
   21,902.04/30,223.14 = 12,468.72/x
3. Step 3: Cross multiply
   21,902.04x = 30,223.14 × 12,468.72
4. Step 4: Simplify right side
   21,902.04x = 376,843,870.18
5. Step 5: Solve for x
   x = 376,843,870.18/21,902.04
6. Step 6: Final answer
   x = 17,205.88