Finding the Fourth Proportional to 12,922.82, 17,807.19 and 12,225.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,922.82 : 17,807.19 = 12,225.50 : x
2. Step 2: Convert to fraction form
   12,922.82/17,807.19 = 12,225.50/x
3. Step 3: Cross multiply
   12,922.82x = 17,807.19 × 12,225.50
4. Step 4: Simplify right side
   12,922.82x = 217,701,801.35
5. Step 5: Solve for x
   x = 217,701,801.35/12,922.82
6. Step 6: Final answer
   x = 16,846.31