Finding the Fourth Proportional to 30,725.98, 42,398.92 and 22,664.03

Step by Step Solution

1. Step 1: Write the proportion equation
   30,725.98 : 42,398.92 = 22,664.03 : x
2. Step 2: Convert to fraction form
   30,725.98/42,398.92 = 22,664.03/x
3. Step 3: Cross multiply
   30,725.98x = 42,398.92 × 22,664.03
4. Step 4: Simplify right side
   30,725.98x = 960,930,343.03
5. Step 5: Solve for x
   x = 960,930,343.03/30,725.98
6. Step 6: Final answer
   x = 31,274.19