Finding the Fourth Proportional to 498,191,447.34, 687,504,171.06 and 269,046,198.72

Step by Step Solution

1. Step 1: Write the proportion equation
   498,191,447.34 : 687,504,171.06 = 269,046,198.72 : x
2. Step 2: Convert to fraction form
   498,191,447.34/687,504,171.06 = 269,046,198.72/x
3. Step 3: Cross multiply
   498,191,447.34x = 687,504,171.06 × 269,046,198.72
4. Step 4: Simplify right side
   498,191,447.34x = 184,970,383,827,837,632
5. Step 5: Solve for x
   x = 184,970,383,827,837,632/498,191,447.34
6. Step 6: Final answer
   x = 371,283,740.05