Finding the Fourth Proportional to 9,143,474.67, 12,617,510.20 and 5,222,460.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,143,474.67 : 12,617,510.20 = 5,222,460.78 : x
2. Step 2: Convert to fraction form
   9,143,474.67/12,617,510.20 = 5,222,460.78/x
3. Step 3: Cross multiply
   9,143,474.67x = 12,617,510.20 × 5,222,460.78
4. Step 4: Simplify right side
   9,143,474.67x = 65,894,452,147,693.80
5. Step 5: Solve for x
   x = 65,894,452,147,693.80/9,143,474.67
6. Step 6: Final answer
   x = 7,206,718.95