Finding the Fourth Proportional to 37,357.96, 56,043.59 and 12,399.48

Step by Step Solution

1. Step 1: Write the proportion equation
   37,357.96 : 56,043.59 = 12,399.48 : x
2. Step 2: Convert to fraction form
   37,357.96/56,043.59 = 12,399.48/x
3. Step 3: Cross multiply
   37,357.96x = 56,043.59 × 12,399.48
4. Step 4: Simplify right side
   37,357.96x = 694,911,404.33
5. Step 5: Solve for x
   x = 694,911,404.33/37,357.96
6. Step 6: Final answer
   x = 18,601.43