Finding the Fourth Proportional to 298,669.72, 412,164.18 and 164,533.72

Step by Step Solution

1. Step 1: Write the proportion equation
   298,669.72 : 412,164.18 = 164,533.72 : x
2. Step 2: Convert to fraction form
   298,669.72/412,164.18 = 164,533.72/x
3. Step 3: Cross multiply
   298,669.72x = 412,164.18 × 164,533.72
4. Step 4: Simplify right side
   298,669.72x = 67,814,905,786.15
5. Step 5: Solve for x
   x = 67,814,905,786.15/298,669.72
6. Step 6: Final answer
   x = 227,056.52