Finding the Fourth Proportional to 38,705.82, 53,414.84 and 21,938.82

Step by Step Solution

1. Step 1: Write the proportion equation
   38,705.82 : 53,414.84 = 21,938.82 : x
2. Step 2: Convert to fraction form
   38,705.82/53,414.84 = 21,938.82/x
3. Step 3: Cross multiply
   38,705.82x = 53,414.84 × 21,938.82
4. Step 4: Simplify right side
   38,705.82x = 1,171,858,450.39
5. Step 5: Solve for x
   x = 1,171,858,450.39/38,705.82
6. Step 6: Final answer
   x = 30,276.03