Finding the Fourth Proportional to 21,550.88, 32,298.30 and 12,062.81

Step by Step Solution

1. Step 1: Write the proportion equation
   21,550.88 : 32,298.30 = 12,062.81 : x
2. Step 2: Convert to fraction form
   21,550.88/32,298.30 = 12,062.81/x
3. Step 3: Cross multiply
   21,550.88x = 32,298.30 × 12,062.81
4. Step 4: Simplify right side
   21,550.88x = 389,608,336.97
5. Step 5: Solve for x
   x = 389,608,336.97/21,550.88
6. Step 6: Final answer
   x = 18,078.53