Finding the Fourth Proportional to 21,574.83, 32,366.86 and 12,219.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,574.83 : 32,366.86 = 12,219.27 : x
2. Step 2: Convert to fraction form
   21,574.83/32,366.86 = 12,219.27/x
3. Step 3: Cross multiply
   21,574.83x = 32,366.86 × 12,219.27
4. Step 4: Simplify right side
   21,574.83x = 395,499,401.39
5. Step 5: Solve for x
   x = 395,499,401.39/21,574.83
6. Step 6: Final answer
   x = 18,331.52