Finding the Fourth Proportional to 22,229.78, 30,675.94 and 12,156.26

Step by Step Solution

1. Step 1: Write the proportion equation
   22,229.78 : 30,675.94 = 12,156.26 : x
2. Step 2: Convert to fraction form
   22,229.78/30,675.94 = 12,156.26/x
3. Step 3: Cross multiply
   22,229.78x = 30,675.94 × 12,156.26
4. Step 4: Simplify right side
   22,229.78x = 372,904,518.61
5. Step 5: Solve for x
   x = 372,904,518.61/22,229.78
6. Step 6: Final answer
   x = 16,775.00