Finding the Fourth Proportional to 298,621.69, 412,097.93 and 164,485.69

Step by Step Solution

1. Step 1: Write the proportion equation
   298,621.69 : 412,097.93 = 164,485.69 : x
2. Step 2: Convert to fraction form
   298,621.69/412,097.93 = 164,485.69/x
3. Step 3: Cross multiply
   298,621.69x = 412,097.93 × 164,485.69
4. Step 4: Simplify right side
   298,621.69x = 67,784,211,127.77
5. Step 5: Solve for x
   x = 67,784,211,127.77/298,621.69
6. Step 6: Final answer
   x = 226,990.25