Finding the Fourth Proportional to 2,620,096,640.91, 3,928,765,910.72 and 1,791,287,307.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620,096,640.91 : 3,928,765,910.72 = 1,791,287,307.72 : x
2. Step 2: Convert to fraction form
   2,620,096,640.91/3,928,765,910.72 = 1,791,287,307.72/x
3. Step 3: Cross multiply
   2,620,096,640.91x = 3,928,765,910.72 × 1,791,287,307.72
4. Step 4: Simplify right side
   2,620,096,640.91x = 7,037,548,510,866,786,304
5. Step 5: Solve for x
   x = 7,037,548,510,866,786,304/2,620,096,640.91
6. Step 6: Final answer
   x = 2,685,988,142.95