Finding the Fourth Proportional to 224,111.78, 309,270.29 and 122,138.18

Step by Step Solution

1. Step 1: Write the proportion equation
   224,111.78 : 309,270.29 = 122,138.18 : x
2. Step 2: Convert to fraction form
   224,111.78/309,270.29 = 122,138.18/x
3. Step 3: Cross multiply
   224,111.78x = 309,270.29 × 122,138.18
4. Step 4: Simplify right side
   224,111.78x = 37,773,710,348.67
5. Step 5: Solve for x
   x = 37,773,710,348.67/224,111.78
6. Step 6: Final answer
   x = 168,548.53