Finding the Fourth Proportional to 563,145.76, 777,196.92 and 321,464.71

Step by Step Solution

1. Step 1: Write the proportion equation
   563,145.76 : 777,196.92 = 321,464.71 : x
2. Step 2: Convert to fraction form
   563,145.76/777,196.92 = 321,464.71/x
3. Step 3: Cross multiply
   563,145.76x = 777,196.92 × 321,464.71
4. Step 4: Simplify right side
   563,145.76x = 249,841,382,500.69
5. Step 5: Solve for x
   x = 249,841,382,500.69/563,145.76
6. Step 6: Final answer
   x = 443,653.14