Finding the Fourth Proportional to 483,357,372.72, 667,113,171.33 and 285,167,321.16

Step by Step Solution

1. Step 1: Write the proportion equation
   483,357,372.72 : 667,113,171.33 = 285,167,321.16 : x
2. Step 2: Convert to fraction form
   483,357,372.72/667,113,171.33 = 285,167,321.16/x
3. Step 3: Cross multiply
   483,357,372.72x = 667,113,171.33 × 285,167,321.16
4. Step 4: Simplify right side
   483,357,372.72x = 190,238,875,978,728,256
5. Step 5: Solve for x
   x = 190,238,875,978,728,256/483,357,372.72
6. Step 6: Final answer
   x = 393,578,099.18