Finding the Fourth Proportional to 39,917.39, 55,085.91 and 22,012.44

Step by Step Solution

1. Step 1: Write the proportion equation
   39,917.39 : 55,085.91 = 22,012.44 : x
2. Step 2: Convert to fraction form
   39,917.39/55,085.91 = 22,012.44/x
3. Step 3: Cross multiply
   39,917.39x = 55,085.91 × 22,012.44
4. Step 4: Simplify right side
   39,917.39x = 1,212,575,288.72
5. Step 5: Solve for x
   x = 1,212,575,288.72/39,917.39
6. Step 6: Final answer
   x = 30,377.12