Finding the Fourth Proportional to 8,978,640.33, 12,392,541.93 and 5,879,363.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,978,640.33 : 12,392,541.93 = 5,879,363.61 : x
2. Step 2: Convert to fraction form
   8,978,640.33/12,392,541.93 = 5,879,363.61/x
3. Step 3: Cross multiply
   8,978,640.33x = 12,392,541.93 × 5,879,363.61
4. Step 4: Simplify right side
   8,978,640.33x = 72,860,260,058,641.17
5. Step 5: Solve for x
   x = 72,860,260,058,641.17/8,978,640.33
6. Step 6: Final answer
   x = 8,114,843.38