Finding the Fourth Proportional to 6,477,323.69, 9,715,317.92 and 2,158,907.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,477,323.69 : 9,715,317.92 = 2,158,907.31 : x
2. Step 2: Convert to fraction form
   6,477,323.69/9,715,317.92 = 2,158,907.31/x
3. Step 3: Cross multiply
   6,477,323.69x = 9,715,317.92 × 2,158,907.31
4. Step 4: Simplify right side
   6,477,323.69x = 20,974,470,865,667.46
5. Step 5: Solve for x
   x = 20,974,470,865,667.46/6,477,323.69
6. Step 6: Final answer
   x = 3,238,138.45