Finding the Fourth Proportional to 30,851.58, 42,572.72 and 17,424.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,851.58 : 42,572.72 = 17,424.15 : x
2. Step 2: Convert to fraction form
   30,851.58/42,572.72 = 17,424.15/x
3. Step 3: Cross multiply
   30,851.58x = 42,572.72 × 17,424.15
4. Step 4: Simplify right side
   30,851.58x = 741,793,343.10
5. Step 5: Solve for x
   x = 741,793,343.10/30,851.58
6. Step 6: Final answer
   x = 24,043.93