Finding the Fourth Proportional to 3,890,404.89, 5,368,745.41 and 2,171,510.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,890,404.89 : 5,368,745.41 = 2,171,510.37 : x
2. Step 2: Convert to fraction form
   3,890,404.89/5,368,745.41 = 2,171,510.37/x
3. Step 3: Cross multiply
   3,890,404.89x = 5,368,745.41 × 2,171,510.37
4. Step 4: Simplify right side
   3,890,404.89x = 11,658,286,326,276.12
5. Step 5: Solve for x
   x = 11,658,286,326,276.12/3,890,404.89
6. Step 6: Final answer
   x = 2,996,676.86