Finding the Fourth Proportional to 2,172,668,404,729.80, 2,998,147,303,665.20 and 1,197,131,688,140.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,668,404,729.80 : 2,998,147,303,665.20 = 1,197,131,688,140.70 : x
2. Step 2: Convert to fraction form
   2,172,668,404,729.80/2,998,147,303,665.20 = 1,197,131,688,140.70/x
3. Step 3: Cross multiply
   2,172,668,404,729.80x = 2,998,147,303,665.20 × 1,197,131,688,140.70
4. Step 4: Simplify right side
   2,172,668,404,729.80x = 3,589,177,142,931,209,116,975,104
5. Step 5: Solve for x
   x = 3,589,177,142,931,209,116,975,104/2,172,668,404,729.80
6. Step 6: Final answer
   x = 1,651,967,292,900.17