Finding the Fourth Proportional to 30,574.64, 42,173.59 and 22,089.25

Step by Step Solution

1. Step 1: Write the proportion equation
   30,574.64 : 42,173.59 = 22,089.25 : x
2. Step 2: Convert to fraction form
   30,574.64/42,173.59 = 22,089.25/x
3. Step 3: Cross multiply
   30,574.64x = 42,173.59 × 22,089.25
4. Step 4: Simplify right side
   30,574.64x = 931,582,972.91
5. Step 5: Solve for x
   x = 931,582,972.91/30,574.64
6. Step 6: Final answer
   x = 30,469.14