Finding the Fourth Proportional to 2,565,866,341.47, 3,540,895,406.72 and 1,392,444,613.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565,866,341.47 : 3,540,895,406.72 = 1,392,444,613.47 : x
2. Step 2: Convert to fraction form
   2,565,866,341.47/3,540,895,406.72 = 1,392,444,613.47/x
3. Step 3: Cross multiply
   2,565,866,341.47x = 3,540,895,406.72 × 1,392,444,613.47
4. Step 4: Simplify right side
   2,565,866,341.47x = 4,930,500,735,940,967,424
5. Step 5: Solve for x
   x = 4,930,500,735,940,967,424/2,565,866,341.47
6. Step 6: Final answer
   x = 1,921,573,488.16