Finding the Fourth Proportional to 22,312.89, 30,791.90 and 12,242.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,312.89 : 30,791.90 = 12,242.25 : x
2. Step 2: Convert to fraction form
   22,312.89/30,791.90 = 12,242.25/x
3. Step 3: Cross multiply
   22,312.89x = 30,791.90 × 12,242.25
4. Step 4: Simplify right side
   22,312.89x = 376,962,076.56
5. Step 5: Solve for x
   x = 376,962,076.56/22,312.89
6. Step 6: Final answer
   x = 16,894.36