Finding the Fourth Proportional to 469,568.52, 647,610.42 and 308,300.04

Step by Step Solution

1. Step 1: Write the proportion equation
   469,568.52 : 647,610.42 = 308,300.04 : x
2. Step 2: Convert to fraction form
   469,568.52/647,610.42 = 308,300.04/x
3. Step 3: Cross multiply
   469,568.52x = 647,610.42 × 308,300.04
4. Step 4: Simplify right side
   469,568.52x = 199,658,318,390.42
5. Step 5: Solve for x
   x = 199,658,318,390.42/469,568.52
6. Step 6: Final answer
   x = 425,195.28