Finding the Fourth Proportional to 30,381.86, 41,925.54 and 22,421.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,381.86 : 41,925.54 = 22,421.18 : x
2. Step 2: Convert to fraction form
   30,381.86/41,925.54 = 22,421.18/x
3. Step 3: Cross multiply
   30,381.86x = 41,925.54 × 22,421.18
4. Step 4: Simplify right side
   30,381.86x = 940,020,078.94
5. Step 5: Solve for x
   x = 940,020,078.94/30,381.86
6. Step 6: Final answer
   x = 30,940.18