Finding the Fourth Proportional to 136,222.90, 204,326.12 and 50,817.31

Step by Step Solution

1. Step 1: Write the proportion equation
   136,222.90 : 204,326.12 = 50,817.31 : x
2. Step 2: Convert to fraction form
   136,222.90/204,326.12 = 50,817.31/x
3. Step 3: Cross multiply
   136,222.90x = 204,326.12 × 50,817.31
4. Step 4: Simplify right side
   136,222.90x = 10,383,303,397.37
5. Step 5: Solve for x
   x = 10,383,303,397.37/136,222.90
6. Step 6: Final answer
   x = 76,222.89