Finding the Fourth Proportional to 30,561.40, 42,174.88 and 17,823.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,561.40 : 42,174.88 = 17,823.42 : x
2. Step 2: Convert to fraction form
   30,561.40/42,174.88 = 17,823.42/x
3. Step 3: Cross multiply
   30,561.40x = 42,174.88 × 17,823.42
4. Step 4: Simplify right side
   30,561.40x = 751,700,555.13
5. Step 5: Solve for x
   x = 751,700,555.13/30,561.40
6. Step 6: Final answer
   x = 24,596.40