Finding the Fourth Proportional to 13,022.49, 17,927.59 and 12,427.45

Step by Step Solution

1. Step 1: Write the proportion equation
   13,022.49 : 17,927.59 = 12,427.45 : x
2. Step 2: Convert to fraction form
   13,022.49/17,927.59 = 12,427.45/x
3. Step 3: Cross multiply
   13,022.49x = 17,927.59 × 12,427.45
4. Step 4: Simplify right side
   13,022.49x = 222,794,228.35
5. Step 5: Solve for x
   x = 222,794,228.35/13,022.49
6. Step 6: Final answer
   x = 17,108.42