Finding the Fourth Proportional to 37,429.35, 56,136.43 and 13,728.83

Step by Step Solution

1. Step 1: Write the proportion equation
   37,429.35 : 56,136.43 = 13,728.83 : x
2. Step 2: Convert to fraction form
   37,429.35/56,136.43 = 13,728.83/x
3. Step 3: Cross multiply
   37,429.35x = 56,136.43 × 13,728.83
4. Step 4: Simplify right side
   37,429.35x = 770,687,237.22
5. Step 5: Solve for x
   x = 770,687,237.22/37,429.35
6. Step 6: Final answer
   x = 20,590.45