Finding the Fourth Proportional to 307,020.38, 423,671.72 and 169,194.83

Step by Step Solution

1. Step 1: Write the proportion equation
   307,020.38 : 423,671.72 = 169,194.83 : x
2. Step 2: Convert to fraction form
   307,020.38/423,671.72 = 169,194.83/x
3. Step 3: Cross multiply
   307,020.38x = 423,671.72 × 169,194.83
4. Step 4: Simplify right side
   307,020.38x = 71,683,061,676.87
5. Step 5: Solve for x
   x = 71,683,061,676.87/307,020.38
6. Step 6: Final answer
   x = 233,479.82