Finding the Fourth Proportional to 22,321.89, 33,463.59 and 12,832.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,321.89 : 33,463.59 = 12,832.20 : x
2. Step 2: Convert to fraction form
   22,321.89/33,463.59 = 12,832.20/x
3. Step 3: Cross multiply
   22,321.89x = 33,463.59 × 12,832.20
4. Step 4: Simplify right side
   22,321.89x = 429,411,479.60
5. Step 5: Solve for x
   x = 429,411,479.60/22,321.89
6. Step 6: Final answer
   x = 19,237.24