Finding the Fourth Proportional to 21,550,410.96, 29,740,262.85 and 12,257,742.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,550,410.96 : 29,740,262.85 = 12,257,742.27 : x
2. Step 2: Convert to fraction form
   21,550,410.96/29,740,262.85 = 12,257,742.27/x
3. Step 3: Cross multiply
   21,550,410.96x = 29,740,262.85 × 12,257,742.27
4. Step 4: Simplify right side
   21,550,410.96x = 364,548,477,057,355.69
5. Step 5: Solve for x
   x = 364,548,477,057,355.69/21,550,410.96
6. Step 6: Final answer
   x = 16,916,080.06