Finding the Fourth Proportional to 37,140.39, 55,719.24 and 20,496.42

Step by Step Solution

1. Step 1: Write the proportion equation
   37,140.39 : 55,719.24 = 20,496.42 : x
2. Step 2: Convert to fraction form
   37,140.39/55,719.24 = 20,496.42/x
3. Step 3: Cross multiply
   37,140.39x = 55,719.24 × 20,496.42
4. Step 4: Simplify right side
   37,140.39x = 1,142,044,945.12
5. Step 5: Solve for x
   x = 1,142,044,945.12/37,140.39
6. Step 6: Final answer
   x = 30,749.41