Finding the Fourth Proportional to 2,881,866,769.78, 4,322,895,842.76 and 991,044,392.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,881,866,769.78 : 4,322,895,842.76 = 991,044,392.69 : x
2. Step 2: Convert to fraction form
   2,881,866,769.78/4,322,895,842.76 = 991,044,392.69/x
3. Step 3: Cross multiply
   2,881,866,769.78x = 4,322,895,842.76 × 991,044,392.69
4. Step 4: Simplify right side
   2,881,866,769.78x = 4,284,181,685,162,800,640
5. Step 5: Solve for x
   x = 4,284,181,685,162,800,640/2,881,866,769.78
6. Step 6: Final answer
   x = 1,486,599,495.19