Finding the Fourth Proportional to 30,821.94, 42,538.32 and 22,886.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,821.94 : 42,538.32 = 22,886.82 : x
2. Step 2: Convert to fraction form
   30,821.94/42,538.32 = 22,886.82/x
3. Step 3: Cross multiply
   30,821.94x = 42,538.32 × 22,886.82
4. Step 4: Simplify right side
   30,821.94x = 973,566,872.94
5. Step 5: Solve for x
   x = 973,566,872.94/30,821.94
6. Step 6: Final answer
   x = 31,586.81