Finding the Fourth Proportional to 37,438.56, 56,139.06 and 12,469.83

Step by Step Solution

1. Step 1: Write the proportion equation
   37,438.56 : 56,139.06 = 12,469.83 : x
2. Step 2: Convert to fraction form
   37,438.56/56,139.06 = 12,469.83/x
3. Step 3: Cross multiply
   37,438.56x = 56,139.06 × 12,469.83
4. Step 4: Simplify right side
   37,438.56x = 700,044,534.56
5. Step 5: Solve for x
   x = 700,044,534.56/37,438.56
6. Step 6: Final answer
   x = 18,698.49