Finding the Fourth Proportional to 224,142.88, 309,314.45 and 122,168.03

Step by Step Solution

1. Step 1: Write the proportion equation
   224,142.88 : 309,314.45 = 122,168.03 : x
2. Step 2: Convert to fraction form
   224,142.88/309,314.45 = 122,168.03/x
3. Step 3: Cross multiply
   224,142.88x = 309,314.45 × 122,168.03
4. Step 4: Simplify right side
   224,142.88x = 37,788,335,960.52
5. Step 5: Solve for x
   x = 37,788,335,960.52/224,142.88
6. Step 6: Final answer
   x = 168,590.39