Finding the Fourth Proportional to 298,738, 412,259.72 and 164,599.12

Step by Step Solution

1. Step 1: Write the proportion equation
   298,738 : 412,259.72 = 164,599.12 : x
2. Step 2: Convert to fraction form
   298,738/412,259.72 = 164,599.12/x
3. Step 3: Cross multiply
   298,738x = 412,259.72 × 164,599.12
4. Step 4: Simplify right side
   298,738x = 67,857,587,123.45
5. Step 5: Solve for x
   x = 67,857,587,123.45/298,738
6. Step 6: Final answer
   x = 227,147.49