Finding the Fourth Proportional to 3,685,382,172, 5,085,861,237.72 and 2,099,450,625.48

Step by Step Solution

1. Step 1: Write the proportion equation
   3,685,382,172 : 5,085,861,237.72 = 2,099,450,625.48 : x
2. Step 2: Convert to fraction form
   3,685,382,172/5,085,861,237.72 = 2,099,450,625.48/x
3. Step 3: Cross multiply
   3,685,382,172x = 5,085,861,237.72 × 2,099,450,625.48
4. Step 4: Simplify right side
   3,685,382,172x = 10,677,514,556,635,742,208
5. Step 5: Solve for x
   x = 10,677,514,556,635,742,208/3,685,382,172
6. Step 6: Final answer
   x = 2,897,261,140.99