Finding the Fourth Proportional to 22,045.78, 30,422.74 and 12,485.52

Step by Step Solution

1. Step 1: Write the proportion equation
   22,045.78 : 30,422.74 = 12,485.52 : x
2. Step 2: Convert to fraction form
   22,045.78/30,422.74 = 12,485.52/x
3. Step 3: Cross multiply
   22,045.78x = 30,422.74 × 12,485.52
4. Step 4: Simplify right side
   22,045.78x = 379,843,576.61
5. Step 5: Solve for x
   x = 379,843,576.61/22,045.78
6. Step 6: Final answer
   x = 17,229.76