Finding the Fourth Proportional to 37,772.89, 52,123.41 and 21,858.37

Step by Step Solution

1. Step 1: Write the proportion equation
   37,772.89 : 52,123.41 = 21,858.37 : x
2. Step 2: Convert to fraction form
   37,772.89/52,123.41 = 21,858.37/x
3. Step 3: Cross multiply
   37,772.89x = 52,123.41 × 21,858.37
4. Step 4: Simplify right side
   37,772.89x = 1,139,332,781.44
5. Step 5: Solve for x
   x = 1,139,332,781.44/37,772.89
6. Step 6: Final answer
   x = 30,162.71