Finding the Fourth Proportional to 37,662.56, 56,493.84 and 12,698

Step by Step Solution

1. Step 1: Write the proportion equation
   37,662.56 : 56,493.84 = 12,698 : x
2. Step 2: Convert to fraction form
   37,662.56/56,493.84 = 12,698/x
3. Step 3: Cross multiply
   37,662.56x = 56,493.84 × 12,698
4. Step 4: Simplify right side
   37,662.56x = 717,358,780.32
5. Step 5: Solve for x
   x = 717,358,780.32/37,662.56
6. Step 6: Final answer
   x = 19,047