Finding the Fourth Proportional to 30,448.86, 42,019.11 and 17,871.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,448.86 : 42,019.11 = 17,871.18 : x
2. Step 2: Convert to fraction form
   30,448.86/42,019.11 = 17,871.18/x
3. Step 3: Cross multiply
   30,448.86x = 42,019.11 × 17,871.18
4. Step 4: Simplify right side
   30,448.86x = 750,931,078.25
5. Step 5: Solve for x
   x = 750,931,078.25/30,448.86
6. Step 6: Final answer
   x = 24,662.04