Finding the Fourth Proportional to 37,629.56, 56,404.83 and 12,660.94

Step by Step Solution

1. Step 1: Write the proportion equation
   37,629.56 : 56,404.83 = 12,660.94 : x
2. Step 2: Convert to fraction form
   37,629.56/56,404.83 = 12,660.94/x
3. Step 3: Cross multiply
   37,629.56x = 56,404.83 × 12,660.94
4. Step 4: Simplify right side
   37,629.56x = 714,138,309.35
5. Step 5: Solve for x
   x = 714,138,309.35/37,629.56
6. Step 6: Final answer
   x = 18,978.12