Finding the Fourth Proportional to 20,009.63, 27,587.59 and 16,411.61

Step by Step Solution

1. Step 1: Write the proportion equation
   20,009.63 : 27,587.59 = 16,411.61 : x
2. Step 2: Convert to fraction form
   20,009.63/27,587.59 = 16,411.61/x
3. Step 3: Cross multiply
   20,009.63x = 27,587.59 × 16,411.61
4. Step 4: Simplify right side
   20,009.63x = 452,756,795.86
5. Step 5: Solve for x
   x = 452,756,795.86/20,009.63
6. Step 6: Final answer
   x = 22,626.94