Finding the Fourth Proportional to 12,139,456.34, 18,206,822.24 and 3,502,949.60

Step by Step Solution

1. Step 1: Write the proportion equation
   12,139,456.34 : 18,206,822.24 = 3,502,949.60 : x
2. Step 2: Convert to fraction form
   12,139,456.34/18,206,822.24 = 3,502,949.60/x
3. Step 3: Cross multiply
   12,139,456.34x = 18,206,822.24 × 3,502,949.60
4. Step 4: Simplify right side
   12,139,456.34x = 63,777,580,682,879.10
5. Step 5: Solve for x
   x = 63,777,580,682,879.10/12,139,456.34
6. Step 6: Final answer
   x = 5,253,742.75