Finding the Fourth Proportional to 13,139,183.67, 18,000,381.41 and 12,647,947.02

Step by Step Solution

1. Step 1: Write the proportion equation
   13,139,183.67 : 18,000,381.41 = 12,647,947.02 : x
2. Step 2: Convert to fraction form
   13,139,183.67/18,000,381.41 = 12,647,947.02/x
3. Step 3: Cross multiply
   13,139,183.67x = 18,000,381.41 × 12,647,947.02
4. Step 4: Simplify right side
   13,139,183.67x = 227,667,870,350,233.16
5. Step 5: Solve for x
   x = 227,667,870,350,233.16/13,139,183.67
6. Step 6: Final answer
   x = 17,327,398.42