Finding the Fourth Proportional to 469,056.24, 647,298.17 and 254,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   469,056.24 : 647,298.17 = 254,196.30 : x
2. Step 2: Convert to fraction form
   469,056.24/647,298.17 = 254,196.30/x
3. Step 3: Cross multiply
   469,056.24x = 647,298.17 × 254,196.30
4. Step 4: Simplify right side
   469,056.24x = 164,540,800,099.87
5. Step 5: Solve for x
   x = 164,540,800,099.87/469,056.24
6. Step 6: Final answer
   x = 350,791.20