Finding the Fourth Proportional to 3,939,411.30, 5,435,461.83 and 2,390,638.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,939,411.30 : 5,435,461.83 = 2,390,638.04 : x
2. Step 2: Convert to fraction form
   3,939,411.30/5,435,461.83 = 2,390,638.04/x
3. Step 3: Cross multiply
   3,939,411.30x = 5,435,461.83 × 2,390,638.04
4. Step 4: Simplify right side
   3,939,411.30x = 12,994,221,815,766.01
5. Step 5: Solve for x
   x = 12,994,221,815,766.01/3,939,411.30
6. Step 6: Final answer
   x = 3,298,518.69