Finding the Fourth Proportional to 22,298.89, 30,772.82 and 12,228.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,298.89 : 30,772.82 = 12,228.25 : x
2. Step 2: Convert to fraction form
   22,298.89/30,772.82 = 12,228.25/x
3. Step 3: Cross multiply
   22,298.89x = 30,772.82 × 12,228.25
4. Step 4: Simplify right side
   22,298.89x = 376,297,675.02
5. Step 5: Solve for x
   x = 376,297,675.02/22,298.89
6. Step 6: Final answer
   x = 16,875.18