Finding the Fourth Proportional to 12,083,383.56, 18,122,445.90 and 3,994,448.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,083,383.56 : 18,122,445.90 = 3,994,448.20 : x
2. Step 2: Convert to fraction form
   12,083,383.56/18,122,445.90 = 3,994,448.20/x
3. Step 3: Cross multiply
   12,083,383.56x = 18,122,445.90 × 3,994,448.20
4. Step 4: Simplify right side
   12,083,383.56x = 72,389,171,404,852.38
5. Step 5: Solve for x
   x = 72,389,171,404,852.38/12,083,383.56
6. Step 6: Final answer
   x = 5,990,803.08