Finding the Fourth Proportional to 22,486,439.69, 31,031,297.22 and 12,173,162.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,486,439.69 : 31,031,297.22 = 12,173,162.78 : x
2. Step 2: Convert to fraction form
   22,486,439.69/31,031,297.22 = 12,173,162.78/x
3. Step 3: Cross multiply
   22,486,439.69x = 31,031,297.22 × 12,173,162.78
4. Step 4: Simplify right side
   22,486,439.69x = 377,749,032,333,621.44
5. Step 5: Solve for x
   x = 377,749,032,333,621.44/22,486,439.69
6. Step 6: Final answer
   x = 16,798,970.29