Finding the Fourth Proportional to 570,713,262.72, 787,632,874.56 and 323,238,641.28

Step by Step Solution

1. Step 1: Write the proportion equation
   570,713,262.72 : 787,632,874.56 = 323,238,641.28 : x
2. Step 2: Convert to fraction form
   570,713,262.72/787,632,874.56 = 323,238,641.28/x
3. Step 3: Cross multiply
   570,713,262.72x = 787,632,874.56 × 323,238,641.28
4. Step 4: Simplify right side
   570,713,262.72x = 254,593,380,200,235,040
5. Step 5: Solve for x
   x = 254,593,380,200,235,040/570,713,262.72
6. Step 6: Final answer
   x = 446,096,835.01