Finding the Fourth Proportional to 298,670.72, 412,165.56 and 164,534.72

Step by Step Solution

1. Step 1: Write the proportion equation
   298,670.72 : 412,165.56 = 164,534.72 : x
2. Step 2: Convert to fraction form
   298,670.72/412,165.56 = 164,534.72/x
3. Step 3: Cross multiply
   298,670.72x = 412,165.56 × 164,534.72
4. Step 4: Simplify right side
   298,670.72x = 67,815,545,008.24
5. Step 5: Solve for x
   x = 67,815,545,008.24/298,670.72
6. Step 6: Final answer
   x = 227,057.90