Finding the Fourth Proportional to 39,922.86, 55,093.12 and 22,018.62

Step by Step Solution

1. Step 1: Write the proportion equation
   39,922.86 : 55,093.12 = 22,018.62 : x
2. Step 2: Convert to fraction form
   39,922.86/55,093.12 = 22,018.62/x
3. Step 3: Cross multiply
   39,922.86x = 55,093.12 × 22,018.62
4. Step 4: Simplify right side
   39,922.86x = 1,213,074,473.89
5. Step 5: Solve for x
   x = 1,213,074,473.89/39,922.86
6. Step 6: Final answer
   x = 30,385.46