Finding the Fourth Proportional to 3,938,323.77, 5,399,443.62 and 3,866,582.88

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938,323.77 : 5,399,443.62 = 3,866,582.88 : x
2. Step 2: Convert to fraction form
   3,938,323.77/5,399,443.62 = 3,866,582.88/x
3. Step 3: Cross multiply
   3,938,323.77x = 5,399,443.62 × 3,866,582.88
4. Step 4: Simplify right side
   3,938,323.77x = 20,877,396,262,617.23
5. Step 5: Solve for x
   x = 20,877,396,262,617.23/3,938,323.77
6. Step 6: Final answer
   x = 5,301,086.83