Finding the Fourth Proportional to 37,705.22, 56,548.48 and 12,744.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,705.22 : 56,548.48 = 12,744.72 : x
2. Step 2: Convert to fraction form
   37,705.22/56,548.48 = 12,744.72/x
3. Step 3: Cross multiply
   37,705.22x = 56,548.48 × 12,744.72
4. Step 4: Simplify right side
   37,705.22x = 720,694,544.03
5. Step 5: Solve for x
   x = 720,694,544.03/37,705.22
6. Step 6: Final answer
   x = 19,113.92