Finding the Fourth Proportional to 39,992.27, 55,188.27 and 22,086.89

Step by Step Solution

1. Step 1: Write the proportion equation
   39,992.27 : 55,188.27 = 22,086.89 : x
2. Step 2: Convert to fraction form
   39,992.27/55,188.27 = 22,086.89/x
3. Step 3: Cross multiply
   39,992.27x = 55,188.27 × 22,086.89
4. Step 4: Simplify right side
   39,992.27x = 1,218,937,179.79
5. Step 5: Solve for x
   x = 1,218,937,179.79/39,992.27
6. Step 6: Final answer
   x = 30,479.32