Finding the Fourth Proportional to 39,914.30, 55,085.43 and 22,920.77

Step by Step Solution

1. Step 1: Write the proportion equation
   39,914.30 : 55,085.43 = 22,920.77 : x
2. Step 2: Convert to fraction form
   39,914.30/55,085.43 = 22,920.77/x
3. Step 3: Cross multiply
   39,914.30x = 55,085.43 × 22,920.77
4. Step 4: Simplify right side
   39,914.30x = 1,262,600,081.35
5. Step 5: Solve for x
   x = 1,262,600,081.35/39,914.30
6. Step 6: Final answer
   x = 31,632.78