Finding the Fourth Proportional to 39,968.31, 55,155.96 and 22,063.31

Step by Step Solution

1. Step 1: Write the proportion equation
   39,968.31 : 55,155.96 = 22,063.31 : x
2. Step 2: Convert to fraction form
   39,968.31/55,155.96 = 22,063.31/x
3. Step 3: Cross multiply
   39,968.31x = 55,155.96 × 22,063.31
4. Step 4: Simplify right side
   39,968.31x = 1,216,922,933.51
5. Step 5: Solve for x
   x = 1,216,922,933.51/39,968.31
6. Step 6: Final answer
   x = 30,447.20