Finding the Fourth Proportional to 37,918.26, 52,329.59 and 21,790.73

Step by Step Solution

1. Step 1: Write the proportion equation
   37,918.26 : 52,329.59 = 21,790.73 : x
2. Step 2: Convert to fraction form
   37,918.26/52,329.59 = 21,790.73/x
3. Step 3: Cross multiply
   37,918.26x = 52,329.59 × 21,790.73
4. Step 4: Simplify right side
   37,918.26x = 1,140,300,266.45
5. Step 5: Solve for x
   x = 1,140,300,266.45/37,918.26
6. Step 6: Final answer
   x = 30,072.59