Finding the Fourth Proportional to 39,922.86, 55,092.78 and 22,019.52

Step by Step Solution

1. Step 1: Write the proportion equation
   39,922.86 : 55,092.78 = 22,019.52 : x
2. Step 2: Convert to fraction form
   39,922.86/55,092.78 = 22,019.52/x
3. Step 3: Cross multiply
   39,922.86x = 55,092.78 × 22,019.52
4. Step 4: Simplify right side
   39,922.86x = 1,213,116,571.07
5. Step 5: Solve for x
   x = 1,213,116,571.07/39,922.86
6. Step 6: Final answer
   x = 30,386.51