Finding the Fourth Proportional to 8,085,109.30, 12,129,413.55 and 2,405,907.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085,109.30 : 12,129,413.55 = 2,405,907.70 : x
2. Step 2: Convert to fraction form
   8,085,109.30/12,129,413.55 = 2,405,907.70/x
3. Step 3: Cross multiply
   8,085,109.30x = 12,129,413.55 × 2,405,907.70
4. Step 4: Simplify right side
   8,085,109.30x = 29,182,249,456,429.34
5. Step 5: Solve for x
   x = 29,182,249,456,429.34/8,085,109.30
6. Step 6: Final answer
   x = 3,609,382.18