Finding the Fourth Proportional to 37,404.74, 56,099.27 and 12,438.09

Step by Step Solution

1. Step 1: Write the proportion equation
   37,404.74 : 56,099.27 = 12,438.09 : x
2. Step 2: Convert to fraction form
   37,404.74/56,099.27 = 12,438.09/x
3. Step 3: Cross multiply
   37,404.74x = 56,099.27 × 12,438.09
4. Step 4: Simplify right side
   37,404.74x = 697,767,730.33
5. Step 5: Solve for x
   x = 697,767,730.33/37,404.74
6. Step 6: Final answer
   x = 18,654.53